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44004040 = 2351100101
BaseRepresentation
bin1010011111011…
…1001011001000
310001210122012021
42213313023020
542231112130
64211054224
71043012443
oct247671310
9101718167
1044004040
1122925983
12128a1374
1391691c2
145bb665a
153ce337a
hex29f72c8

44004040 has 16 divisors (see below), whose sum is σ = 99009180. Its totient is φ = 17601600.

The previous prime is 44004017. The next prime is 44004053. The reversal of 44004040 is 4040044.

It can be written as a sum of positive squares in 2 ways, for example, as 43797924 + 206116 = 6618^2 + 454^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 550011 + ... + 550090.

Almost surely, 244004040 is an apocalyptic number.

44004040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44004040 is an abundant number, since it is smaller than the sum of its proper divisors (55005140).

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

44004040 is a wasteful number, since it uses less digits than its factorization.

44004040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100112 (or 1100108 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 44004040 is about 6633.5541001789. The cubic root of 44004040 is about 353.0456382074.

Adding to 44004040 its reverse (4040044), we get a palindrome (48044084).

The spelling of 44004040 in words is "forty-four million, four thousand, forty", and thus it is an eban number.

Divisors: 1 2 4 5 8 10 20 40 1100101 2200202 4400404 5500505 8800808 11001010 22002020 44004040