28928296 has 16 divisors (see below), whose sum is σ = 56599200. Its totient is φ = 13835184.

The previous prime is 28928269. The next prime is 28928309. The reversal of 28928296 is 69282982.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78426 + ... + 78793.

It is an arithmetic number, because the mean of its divisors is an integer number (3537450).

Almost surely, 2^28928296 is an apocalyptic number.

It is an amenable number.

28928296 is a deficient number, since it is larger than the sum of its proper divisors (27670904).

28928296 is a wasteful number, since it uses less digits than its factorization.

28928296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157248 (or 157244 counting only the distinct ones).

The product of its digits is 248832, while the sum is 46.

The square root of 28928296 is about 5378.5031374910. The cubic root of 28928296 is about 306.9782581766.

It can be divided in two parts, 2 and 8928296, that added together give a palindrome (8928298).

The spelling of 28928296 in words is "twenty-eight million, nine hundred twenty-eight thousand, two hundred ninety-six".