45679728 has 40 divisors (see below), whose sum is σ = 119948176. Its totient is φ = 14976000.

The previous prime is 45679721. The next prime is 45679757. The reversal of 45679728 is 82797654.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45679721) 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, 4873 + ... + 10728.

Almost surely, 2^45679728 is an apocalyptic number.

45679728 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

45679728 is an abundant number, since it is smaller than the sum of its proper divisors (74268448).

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

45679728 is a wasteful number, since it uses less digits than its factorization.

45679728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15673 (or 15667 counting only the distinct ones).

The product of its digits is 846720, while the sum is 48.

The square root of 45679728 is about 6758.6779772379. The cubic root of 45679728 is about 357.4712918085.

The spelling of 45679728 in words is "forty-five million, six hundred seventy-nine thousand, seven hundred twenty-eight".