28590336 has 54 divisors (see below), whose sum is σ = 82439630. Its totient is φ = 9529344.

The previous prime is 28590323. The next prime is 28590343. The reversal of 28590336 is 63309582.

It can be written as a sum of positive squares in only one way, i.e., 16646400 + 11943936 = 4080^2 + 3456^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 28590336.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3901 + ... + 8508.

Almost surely, 2^28590336 is an apocalyptic number.

It is an amenable number.

28590336 is an abundant number, since it is smaller than the sum of its proper divisors (53849294).

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

28590336 is a wasteful number, since it uses less digits than its factorization.

28590336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12431 (or 12414 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 28590336 is about 5346.9931737379. The cubic root of 28590336 is about 305.7781295691.

The spelling of 28590336 in words is "twenty-eight million, five hundred ninety thousand, three hundred thirty-six".