45042372 has 48 divisors (see below), whose sum is σ = 121860480. Its totient is φ = 14360544.

The previous prime is 45042359. The next prime is 45042379. The reversal of 45042372 is 27324054.

45042372 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (45042379) 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 in 15 ways as a sum of consecutive naturals, for example, 6583 + ... + 11550.

It is an arithmetic number, because the mean of its divisors is an integer number (2538760).

Almost surely, 2^45042372 is an apocalyptic number.

It is an amenable number.

45042372 is an abundant number, since it is smaller than the sum of its proper divisors (76818108).

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

45042372 is a wasteful number, since it uses less digits than its factorization.

45042372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18169 (or 18161 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 45042372 is about 6711.3614118150. The cubic root of 45042372 is about 355.8009344521.

The spelling of 45042372 in words is "forty-five million, forty-two thousand, three hundred seventy-two".