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4404407440 = 245432515101
BaseRepresentation
bin1000001101000010…
…11110110010010000
3102100221200002011111
410012201132302100
533010012014230
62005013423104
7214100563006
oct40641366220
912327602144
104404407440
11196019a554
12a2b03aa94
13552647164
142dad44a76
151aba0992a
hex10685ec90

4404407440 has 80 divisors (see below), whose sum is σ = 10522201536. Its totient is φ = 1713600000.

The previous prime is 4404407353. The next prime is 4404407453. The reversal of 4404407440 is 447044044.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-3 number, since 3×44044074403 (a number of 30 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 860890 + ... + 865990.

Almost surely, 24404407440 is an apocalyptic number.

4404407440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4404407440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5261100768).

4404407440 is an abundant number, since it is smaller than the sum of its proper divisors (6117794096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4404407440 is a wasteful number, since it uses less digits than its factorization.

4404407440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5408 (or 5402 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 31.

The square root of 4404407440 is about 66365.7098206596. The cubic root of 4404407440 is about 1639.1894963942.

The spelling of 4404407440 in words is "four billion, four hundred four million, four hundred seven thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 43 80 86 172 215 251 344 430 502 688 860 1004 1255 1720 2008 2510 3440 4016 5020 5101 10040 10202 10793 20080 20404 21586 25505 40808 43172 51010 53965 81616 86344 102020 107930 172688 204040 215860 219343 408080 431720 438686 863440 877372 1096715 1280351 1754744 2193430 2560702 3509488 4386860 5121404 6401755 8773720 10242808 12803510 17547440 20485616 25607020 51214040 55055093 102428080 110110186 220220372 275275465 440440744 550550930 880881488 1101101860 2202203720 4404407440