45287472 has 40 divisors (see below), whose sum is σ = 118318320. Its totient is φ = 14924800.

The previous prime is 45287453. The next prime is 45287477. The reversal of 45287472 is 27478254.

It is a self number, because there is not a number n which added to its sum of digits gives 45287472.

It is not an unprimeable number, because it can be changed into a prime (45287477) 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, 1029 + ... + 9572.

It is an arithmetic number, because the mean of its divisors is an integer number (2957958).

Almost surely, 2^45287472 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 45287472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59159160).

45287472 is an abundant number, since it is smaller than the sum of its proper divisors (73030848).

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

45287472 is a wasteful number, since it uses less digits than its factorization.

45287472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10701 (or 10695 counting only the distinct ones).

The product of its digits is 125440, while the sum is 39.

The square root of 45287472 is about 6729.5967189721. The cubic root of 45287472 is about 356.4451360617.

The spelling of 45287472 in words is "forty-five million, two hundred eighty-seven thousand, four hundred seventy-two".