28635456 has 28 divisors (see below), whose sum is σ = 75765152. Its totient is φ = 9545088.

The previous prime is 28635433. The next prime is 28635461. The reversal of 28635456 is 65453682.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74380 + ... + 74763.

Almost surely, 2^28635456 is an apocalyptic number.

It is an amenable number.

28635456 is an abundant number, since it is smaller than the sum of its proper divisors (47129696).

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

28635456 is a wasteful number, since it uses less digits than its factorization.

28635456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149158 (or 149148 counting only the distinct ones).

The product of its digits is 172800, while the sum is 39.

The square root of 28635456 is about 5351.2107041304. The cubic root of 28635456 is about 305.9389001850.

The spelling of 28635456 in words is "twenty-eight million, six hundred thirty-five thousand, four hundred fifty-six".