45390568 has 32 divisors (see below), whose sum is σ = 88993800. Its totient is φ = 21676032.

The previous prime is 45390559. The next prime is 45390571. The reversal of 45390568 is 86509354.

45390568 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 4 ways, for example, as 43322724 + 2067844 = 6582^2 + 1438^2 .

It is a nialpdrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 45390568.

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 7 ways as a sum of consecutive naturals, for example, 21496 + ... + 23512.

Almost surely, 2^45390568 is an apocalyptic number.

It is an amenable number.

45390568 is a deficient number, since it is larger than the sum of its proper divisors (43603232).

45390568 is a wasteful number, since it uses less digits than its factorization.

45390568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2149 (or 2145 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 45390568 is about 6737.2522588961. The cubic root of 45390568 is about 356.7154110843.

The spelling of 45390568 in words is "forty-five million, three hundred ninety thousand, five hundred sixty-eight".