28682404 has 6 divisors (see below), whose sum is σ = 50194214. Its totient is φ = 14341200.

The previous prime is 28682399. The next prime is 28682413. The reversal of 28682404 is 40428682.

It can be written as a sum of positive squares in only one way, i.e., 22581504 + 6100900 = 4752^2 + 2470^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 28682404.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3585297 + ... + 3585304.

Almost surely, 2^28682404 is an apocalyptic number.

It is an amenable number.

28682404 is a deficient number, since it is larger than the sum of its proper divisors (21511810).

28682404 is a wasteful number, since it uses less digits than its factorization.

28682404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7170605 (or 7170603 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 34.

The square root of 28682404 is about 5355.5955784581. The cubic root of 28682404 is about 306.1060051090.

The spelling of 28682404 in words is "twenty-eight million, six hundred eighty-two thousand, four hundred four".