28336288 has 12 divisors (see below), whose sum is σ = 55787130. Its totient is φ = 14168128.

The previous prime is 28336271. The next prime is 28336303. The reversal of 28336288 is 88263382.

It can be written as a sum of positive squares in only one way, i.e., 25280784 + 3055504 = 5028^2 + 1748^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 28336288.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 442723 + ... + 442786.

Almost surely, 2^28336288 is an apocalyptic number.

It is an amenable number.

28336288 is a deficient number, since it is larger than the sum of its proper divisors (27450842).

28336288 is an equidigital number, since it uses as much as digits as its factorization.

28336288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885519 (or 885511 counting only the distinct ones).

The product of its digits is 110592, while the sum is 40.

The square root of 28336288 is about 5323.1840095943. The cubic root of 28336288 is about 304.8697392336.

The spelling of 28336288 in words is "twenty-eight million, three hundred thirty-six thousand, two hundred eighty-eight".