45728856 has 48 divisors (see below), whose sum is σ = 124160400. Its totient is φ = 15204672.

The previous prime is 45728843. The next prime is 45728857. The reversal of 45728856 is 65882754.

It is a super-2 number, since 2×45728856² = 4182256542137472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45728857) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54085 + ... + 54923.

It is an arithmetic number, because the mean of its divisors is an integer number (2586675).

Almost surely, 2^45728856 is an apocalyptic number.

It is an amenable number.

45728856 is an abundant number, since it is smaller than the sum of its proper divisors (78431544).

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

45728856 is a wasteful number, since it uses less digits than its factorization.

45728856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1608 (or 1601 counting only the distinct ones).

The product of its digits is 537600, while the sum is 45.

The square root of 45728856 is about 6762.3114391456. The cubic root of 45728856 is about 357.5993979240.

The spelling of 45728856 in words is "forty-five million, seven hundred twenty-eight thousand, eight hundred fifty-six".