45599904 has 72 divisors (see below), whose sum is σ = 148206240. Its totient is φ = 13027968.

The previous prime is 45599903. The next prime is 45599927. The reversal of 45599904 is 40999554.

45599904 is a `hidden beast` number, since 4 + 559 + 9 + 90 + 4 = 666.

45599904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (72).

It is a self number, because there is not a number n which added to its sum of digits gives 45599904.

It is not an unprimeable number, because it can be changed into a prime (45599903) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 9294 + ... + 13325.

It is an arithmetic number, because the mean of its divisors is an integer number (2058420).

Almost surely, 2^45599904 is an apocalyptic number.

It is an amenable number.

45599904 is an abundant number, since it is smaller than the sum of its proper divisors (102606336).

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

45599904 is a wasteful number, since it uses less digits than its factorization.

45599904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22642 (or 22631 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The square root of 45599904 is about 6752.7700982634. The cubic root of 45599904 is about 357.2629468304.

The spelling of 45599904 in words is "forty-five million, five hundred ninety-nine thousand, nine hundred four".