22013328 has 20 divisors (see below), whose sum is σ = 56867888. Its totient is φ = 7337760.

The previous prime is 22013281. The next prime is 22013339. The reversal of 22013328 is 82331022.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229258 + ... + 229353.

Almost surely, 2^22013328 is an apocalyptic number.

It is an amenable number.

22013328 is an abundant number, since it is smaller than the sum of its proper divisors (34854560).

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

22013328 is a wasteful number, since it uses less digits than its factorization.

22013328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458622 (or 458616 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 22013328 is about 4691.8363142804. The cubic root of 22013328 is about 280.2605058552.

The spelling of 22013328 in words is "twenty-two million, thirteen thousand, three hundred twenty-eight".