22012328 has 16 divisors (see below), whose sum is σ = 44448180. Its totient is φ = 10159488.

The previous prime is 22012321. The next prime is 22012337. The reversal of 22012328 is 82321022.

It can be written as a sum of positive squares in 2 ways, for example, as 21921124 + 91204 = 4682^2 + 302^2 .

It is not an unprimeable number, because it can be changed into a prime (22012321) by changing a digit.

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, 105725 + ... + 105932.

Almost surely, 2^22012328 is an apocalyptic number.

It is an amenable number.

22012328 is an abundant number, since it is smaller than the sum of its proper divisors (22435852).

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

22012328 is a wasteful number, since it uses less digits than its factorization.

22012328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211676 (or 211672 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 22012328 is about 4691.7297449874. The cubic root of 22012328 is about 280.2562619906.

The spelling of 22012328 in words is "twenty-two million, twelve thousand, three hundred twenty-eight".