45118272 has 112 divisors (see below), whose sum is σ = 132112512. Its totient is φ = 13516800.

The previous prime is 45118259. The next prime is 45118277. The reversal of 45118272 is 27281154.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45118277) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74772 + ... + 75372.

It is an arithmetic number, because the mean of its divisors is an integer number (1179576).

Almost surely, 2^45118272 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 45118272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66056256).

45118272 is an abundant number, since it is smaller than the sum of its proper divisors (86994240).

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

45118272 is a wasteful number, since it uses less digits than its factorization.

45118272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656 (or 646 counting only the distinct ones).

The product of its digits is 4480, while the sum is 30.

The square root of 45118272 is about 6717.0136221389. The cubic root of 45118272 is about 356.0006733144. Note that the first 3 decimals are identical.

The spelling of 45118272 in words is "forty-five million, one hundred eighteen thousand, two hundred seventy-two".