45445272 has 32 divisors (see below), whose sum is σ = 114031680. Its totient is φ = 15092640.

The previous prime is 45445271. The next prime is 45445273. The reversal of 45445272 is 27254454.

It is an interprime number because it is at equal distance from previous prime (45445271) and next prime (45445273).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45445271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3447 + ... + 10137.

It is an arithmetic number, because the mean of its divisors is an integer number (3563490).

Almost surely, 2^45445272 is an apocalyptic number.

It is an amenable number.

45445272 is an abundant number, since it is smaller than the sum of its proper divisors (68586408).

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

45445272 is a wasteful number, since it uses less digits than its factorization.

45445272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6983 (or 6979 counting only the distinct ones).

The product of its digits is 44800, while the sum is 33.

The square root of 45445272 is about 6741.3108517558. The cubic root of 45445272 is about 356.8586561587.

The spelling of 45445272 in words is "forty-five million, four hundred forty-five thousand, two hundred seventy-two".