28832226 has 16 divisors (see below), whose sum is σ = 58455264. Its totient is φ = 9478944.

The previous prime is 28832191. The next prime is 28832249. The reversal of 28832226 is 62223882.

It is a super-2 number, since 2×28832226² = 1662594512230152, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32476 + ... + 33351.

It is an arithmetic number, because the mean of its divisors is an integer number (3653454).

Almost surely, 2^28832226 is an apocalyptic number.

28832226 is an abundant number, since it is smaller than the sum of its proper divisors (29623038).

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

28832226 is a wasteful number, since it uses less digits than its factorization.

28832226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65905.

The product of its digits is 18432, while the sum is 33.

The square root of 28832226 is about 5369.5647868333. The cubic root of 28832226 is about 306.6380594508.

The spelling of 28832226 in words is "twenty-eight million, eight hundred thirty-two thousand, two hundred twenty-six".