45199232 has 64 divisors (see below), whose sum is σ = 101273760. Its totient is φ = 19937280.

The previous prime is 45199223. The next prime is 45199267. The reversal of 45199232 is 23299154.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 45199192 and 45199201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37682 + ... + 38862.

Almost surely, 2^45199232 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 45199232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50636880).

45199232 is an abundant number, since it is smaller than the sum of its proper divisors (56074528).

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

45199232 is a wasteful number, since it uses less digits than its factorization.

45199232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231 (or 1219 counting only the distinct ones).

The product of its digits is 19440, while the sum is 35.

The square root of 45199232 is about 6723.0374087908. The cubic root of 45199232 is about 356.2134813495.

The spelling of 45199232 in words is "forty-five million, one hundred ninety-nine thousand, two hundred thirty-two".