22306828 has 12 divisors (see below), whose sum is σ = 39137112. Its totient is φ = 11124800.

The previous prime is 22306807. The next prime is 22306883. The reversal of 22306828 is 82860322.

It is a self number, because there is not a number n which added to its sum of digits gives 22306828.

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, 5350 + ... + 8557.

It is an arithmetic number, because the mean of its divisors is an integer number (3261426).

Almost surely, 2^22306828 is an apocalyptic number.

It is an amenable number.

22306828 is a deficient number, since it is larger than the sum of its proper divisors (16830284).

22306828 is a wasteful number, since it uses less digits than its factorization.

22306828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14312 (or 14310 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 22306828 is about 4723.0104806151. The cubic root of 22306828 is about 281.5005663003.

The spelling of 22306828 in words is "twenty-two million, three hundred six thousand, eight hundred twenty-eight".