45318432 has 24 divisors (see below), whose sum is σ = 118961136. Its totient is φ = 15106112.

The previous prime is 45318421. The next prime is 45318433. The reversal of 45318432 is 23481354.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 45318432.

It is not an unprimeable number, because it can be changed into a prime (45318433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235938 + ... + 236129.

It is an arithmetic number, because the mean of its divisors is an integer number (4956714).

Almost surely, 2^45318432 is an apocalyptic number.

It is an amenable number.

45318432 is an abundant number, since it is smaller than the sum of its proper divisors (73642704).

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

45318432 is a wasteful number, since it uses less digits than its factorization.

45318432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472080 (or 472072 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

The square root of 45318432 is about 6731.8966123968. The cubic root of 45318432 is about 356.5263434179.

Adding to 45318432 its reverse (23481354), we get a palindrome (68799786).

The spelling of 45318432 in words is "forty-five million, three hundred eighteen thousand, four hundred thirty-two".