22739012 has 12 divisors (see below), whose sum is σ = 40273296. Its totient is φ = 11232360.

The previous prime is 22739009. The next prime is 22739021. The reversal of 22739012 is 21093722.

It is a super-2 number, since 2×22739012² = 1034125333472288, which contains 22 as substring.

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, 33914 + ... + 34577.

It is an arithmetic number, because the mean of its divisors is an integer number (3356108).

Almost surely, 2^22739012 is an apocalyptic number.

It is an amenable number.

22739012 is a deficient number, since it is larger than the sum of its proper divisors (17534284).

22739012 is a wasteful number, since it uses less digits than its factorization.

22739012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68578 (or 68576 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 22739012 is about 4768.5440125892. The cubic root of 22739012 is about 283.3069293349.

The spelling of 22739012 in words is "twenty-two million, seven hundred thirty-nine thousand, twelve".