45031232 has 28 divisors (see below), whose sum is σ = 94617540. Its totient is φ = 21190656.

The previous prime is 45031223. The next prime is 45031307. The reversal of 45031232 is 23213054.

It is a happy number.

45031232 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 2 ways, for example, as 33362176 + 11669056 = 5776^2 + 3416^2 .

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 19607 + ... + 21782.

Almost surely, 2^45031232 is an apocalyptic number.

It is an amenable number.

45031232 is an abundant number, since it is smaller than the sum of its proper divisors (49586308).

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

45031232 is a wasteful number, since it uses less digits than its factorization.

45031232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41418 (or 41408 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 45031232 is about 6710.5314245595. The cubic root of 45031232 is about 355.7715994871.

Adding to 45031232 its reverse (23213054), we get a palindrome (68244286).

The spelling of 45031232 in words is "forty-five million, thirty-one thousand, two hundred thirty-two".