28326288 has 20 divisors (see below), whose sum is σ = 73176368. Its totient is φ = 9442080.

The previous prime is 28326269. The next prime is 28326299. The reversal of 28326288 is 88262382.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 295018 + ... + 295113.

Almost surely, 2^28326288 is an apocalyptic number.

It is an amenable number.

28326288 is an abundant number, since it is smaller than the sum of its proper divisors (44850080).

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

28326288 is a wasteful number, since it uses less digits than its factorization.

28326288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590142 (or 590136 counting only the distinct ones).

The product of its digits is 73728, while the sum is 39.

The square root of 28326288 is about 5322.2446392476. The cubic root of 28326288 is about 304.8338717257.

The spelling of 28326288 in words is "twenty-eight million, three hundred twenty-six thousand, two hundred eighty-eight".