28276304 has 40 divisors (see below), whose sum is σ = 66299328. Its totient is φ = 11404800.

The previous prime is 28276277. The next prime is 28276307. The reversal of 28276304 is 40367282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28276307) 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, 5522 + ... + 9329.

Almost surely, 2^28276304 is an apocalyptic number.

It is an amenable number.

28276304 is an abundant number, since it is smaller than the sum of its proper divisors (38023024).

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

28276304 is a wasteful number, since it uses less digits than its factorization.

28276304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14883 (or 14877 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 28276304 is about 5317.5468028030. The cubic root of 28276304 is about 304.6544649119.

The spelling of 28276304 in words is "twenty-eight million, two hundred seventy-six thousand, three hundred four".