22719012 has 24 divisors (see below), whose sum is σ = 53911200. Its totient is φ = 7444416.

The previous prime is 22718959. The next prime is 22719013. The reversal of 22719012 is 21091722.

It is a super-2 number, since 2×22719012² = 1032307012512288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22719013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15337 + ... + 16752.

It is an arithmetic number, because the mean of its divisors is an integer number (2246300).

Almost surely, 2^22719012 is an apocalyptic number.

It is an amenable number.

22719012 is an abundant number, since it is smaller than the sum of its proper divisors (31192188).

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

22719012 is a wasteful number, since it uses less digits than its factorization.

22719012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32155 (or 32153 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 22719012 is about 4766.4464751007. The cubic root of 22719012 is about 283.2238445083.

The spelling of 22719012 in words is "twenty-two million, seven hundred nineteen thousand, twelve".