45642432 has 56 divisors (see below), whose sum is σ = 131746752. Its totient is φ = 13830400.

The previous prime is 45642413. The next prime is 45642449. The reversal of 45642432 is 23424654.

It is a self number, because there is not a number n which added to its sum of digits gives 45642432.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8694 + ... + 12917.

Almost surely, 2^45642432 is an apocalyptic number.

It is an amenable number.

45642432 is an abundant number, since it is smaller than the sum of its proper divisors (86104320).

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

45642432 is a wasteful number, since it uses less digits than its factorization.

45642432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21637 (or 21627 counting only the distinct ones).

The product of its digits is 23040, while the sum is 30.

The square root of 45642432 is about 6755.9182943550. The cubic root of 45642432 is about 357.3739774565.

It can be divided in two parts, 4564 and 2432, that added together give a palindrome (6996).

The spelling of 45642432 in words is "forty-five million, six hundred forty-two thousand, four hundred thirty-two".