45899172 has 108 divisors (see below), whose sum is σ = 131148108. Its totient is φ = 13516800.

The previous prime is 45899159. The next prime is 45899209. The reversal of 45899172 is 27199854.

It can be written as a sum of positive squares in 2 ways, for example, as 25160256 + 20738916 = 5016^2 + 4554^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 178468 + ... + 178724.

Almost surely, 2^45899172 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 45899172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65574054).

45899172 is an abundant number, since it is smaller than the sum of its proper divisors (85248936).

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

45899172 is a wasteful number, since it uses less digits than its factorization.

45899172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330 (or 314 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 45899172 is about 6774.8927666790. The cubic root of 45899172 is about 358.0428046152.

The spelling of 45899172 in words is "forty-five million, eight hundred ninety-nine thousand, one hundred seventy-two".