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444500340 = 223541917681
BaseRepresentation
bin11010011111101…
…000100101110100
31010222101221211120
4122133220211310
51402243002330
6112035103540
714005122234
oct3237504564
91128357746
10444500340
112089aa759
12104a41bb0
137112266b
1443069cc4
1529053c10
hex1a7e8974

444500340 has 48 divisors (see below), whose sum is σ = 1247641920. Its totient is φ = 118243840.

The previous prime is 444500333. The next prime is 444500341. The reversal of 444500340 is 43005444.

It is a self number, because there is not a number n which added to its sum of digits gives 444500340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444500341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16300 + ... + 33980.

It is an arithmetic number, because the mean of its divisors is an integer number (25992540).

Almost surely, 2444500340 is an apocalyptic number.

It is an amenable number.

444500340 is an abundant number, since it is smaller than the sum of its proper divisors (803141580).

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

444500340 is a wasteful number, since it uses less digits than its factorization.

444500340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18112 (or 18110 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 444500340 is about 21083.1767056106. The cubic root of 444500340 is about 763.1748192471.

Adding to 444500340 its reverse (43005444), we get a palindrome (487505784).

The spelling of 444500340 in words is "four hundred forty-four million, five hundred thousand, three hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 419 838 1257 1676 2095 2514 4190 5028 6285 8380 12570 17681 25140 35362 53043 70724 88405 106086 176810 212172 265215 353620 530430 1060860 7408339 14816678 22225017 29633356 37041695 44450034 74083390 88900068 111125085 148166780 222250170 444500340