45639592 has 8 divisors (see below), whose sum is σ = 85574250. Its totient is φ = 22819792.

The previous prime is 45639589. The next prime is 45639593. The reversal of 45639592 is 29593654.

45639592 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 36312676 + 9326916 = 6026^2 + 3054^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (45639593) 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 as a sum of consecutive naturals, namely, 2852467 + ... + 2852482.

Almost surely, 2^45639592 is an apocalyptic number.

It is an amenable number.

45639592 is a deficient number, since it is larger than the sum of its proper divisors (39934658).

45639592 is a wasteful number, since it uses less digits than its factorization.

45639592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5704955 (or 5704951 counting only the distinct ones).

The product of its digits is 291600, while the sum is 43.

The square root of 45639592 is about 6755.7081050028. The cubic root of 45639592 is about 357.3665650327.

The spelling of 45639592 in words is "forty-five million, six hundred thirty-nine thousand, five hundred ninety-two".