45572544 has 140 divisors (see below), whose sum is σ = 138303000. Its totient is φ = 14833152.

The previous prime is 45572533. The next prime is 45572581. The reversal of 45572544 is 44527554.

It is a happy number.

45572544 is a `hidden beast` number, since 45 + 5 + 72 + 544 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 45572499 and 45572508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 305782 + ... + 305930.

Almost surely, 2^45572544 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 45572544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69151500).

45572544 is an abundant number, since it is smaller than the sum of its proper divisors (92730456).

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

45572544 is a wasteful number, since it uses less digits than its factorization.

45572544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232 (or 213 counting only the distinct ones).

The product of its digits is 112000, while the sum is 36.

The square root of 45572544 is about 6750.7439590019. The cubic root of 45572544 is about 357.1914797953.

The spelling of 45572544 in words is "forty-five million, five hundred seventy-two thousand, five hundred forty-four".