28475204 has 24 divisors (see below), whose sum is σ = 53765208. Its totient is φ = 13145600.

The previous prime is 28475203. The next prime is 28475261. The reversal of 28475204 is 40257482.

It can be written as a sum of positive squares in 4 ways, for example, as 13249600 + 15225604 = 3640^2 + 3902^2 .

It is not an unprimeable number, because it can be changed into a prime (28475203) 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, 347 + ... + 7554.

It is an arithmetic number, because the mean of its divisors is an integer number (2240217).

Almost surely, 2^28475204 is an apocalyptic number.

It is an amenable number.

28475204 is a deficient number, since it is larger than the sum of its proper divisors (25290004).

28475204 is a wasteful number, since it uses less digits than its factorization.

28475204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7975 (or 7973 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 28475204 is about 5336.2162624841. The cubic root of 28475204 is about 305.3671257748.

The spelling of 28475204 in words is "twenty-eight million, four hundred seventy-five thousand, two hundred four".