22678972 has 12 divisors (see below), whose sum is σ = 39739336. Its totient is φ = 11324880.

The previous prime is 22678967. The next prime is 22678991. The reversal of 22678972 is 27987622.

It is a happy number.

It is a congruent number.

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, 322 + ... + 6742.

Almost surely, 2^22678972 is an apocalyptic number.

It is an amenable number.

22678972 is a deficient number, since it is larger than the sum of its proper divisors (17060364).

22678972 is a wasteful number, since it uses less digits than its factorization.

22678972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7308 (or 7306 counting only the distinct ones).

The product of its digits is 169344, while the sum is 43.

The square root of 22678972 is about 4762.2444288382. The cubic root of 22678972 is about 283.0573620441.

The spelling of 22678972 in words is "twenty-two million, six hundred seventy-eight thousand, nine hundred seventy-two".