28472264 has 16 divisors (see below), whose sum is σ = 53727900. Its totient is φ = 14144832.

The previous prime is 28472219. The next prime is 28472273. The reversal of 28472264 is 46227482.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 27352900 + 1119364 = 5230^2 + 1058^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10079 + ... + 12590.

Almost surely, 2^28472264 is an apocalyptic number.

It is an amenable number.

28472264 is a deficient number, since it is larger than the sum of its proper divisors (25255636).

28472264 is a wasteful number, since it uses less digits than its factorization.

28472264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22832 (or 22828 counting only the distinct ones).

The product of its digits is 43008, while the sum is 35.

The square root of 28472264 is about 5335.9407792816. The cubic root of 28472264 is about 305.3566159262.

The spelling of 28472264 in words is "twenty-eight million, four hundred seventy-two thousand, two hundred sixty-four".