28504336 has 40 divisors (see below), whose sum is σ = 63398720. Its totient is φ = 12161664.

The previous prime is 28504327. The next prime is 28504367. The reversal of 28504336 is 63340582.

It is a junction number, because it is equal to n+sod(n) for n = 28504298 and 28504307.

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 7 ways as a sum of consecutive naturals, for example, 33970 + ... + 34798.

It is an arithmetic number, because the mean of its divisors is an integer number (1584968).

Almost surely, 2^28504336 is an apocalyptic number.

It is an amenable number.

28504336 is an abundant number, since it is smaller than the sum of its proper divisors (34894384).

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

28504336 is a wasteful number, since it uses less digits than its factorization.

28504336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1151 (or 1145 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 28504336 is about 5338.9452141785. The cubic root of 28504336 is about 305.4712271433.

The spelling of 28504336 in words is "twenty-eight million, five hundred four thousand, three hundred thirty-six".