45191232 has 84 divisors (see below), whose sum is σ = 131578096. Its totient is φ = 14826240.

The previous prime is 45191207. The next prime is 45191243. The reversal of 45191232 is 23219154.

It is a junction number, because it is equal to n+sod(n) for n = 45191196 and 45191205.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38007 + ... + 39177.

Almost surely, 2^45191232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45191232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65789048).

45191232 is an abundant number, since it is smaller than the sum of its proper divisors (86386864).

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

45191232 is a wasteful number, since it uses less digits than its factorization.

45191232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256 (or 1243 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 45191232 is about 6722.4424132900. The cubic root of 45191232 is about 356.1924642078.

The spelling of 45191232 in words is "forty-five million, one hundred ninety-one thousand, two hundred thirty-two".