22159964 has 12 divisors (see below), whose sum is σ = 39682104. Its totient is φ = 10822224.

The previous prime is 22159937. The next prime is 22159979. The reversal of 22159964 is 46995122.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 64247 + ... + 64590.

It is an arithmetic number, because the mean of its divisors is an integer number (3306842).

Almost surely, 2^22159964 is an apocalyptic number.

It is an amenable number.

22159964 is a deficient number, since it is larger than the sum of its proper divisors (17522140).

22159964 is a wasteful number, since it uses less digits than its factorization.

22159964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128884 (or 128882 counting only the distinct ones).

The product of its digits is 38880, while the sum is 38.

The square root of 22159964 is about 4707.4370946408. The cubic root of 22159964 is about 280.8814231020.

The spelling of 22159964 in words is "twenty-two million, one hundred fifty-nine thousand, nine hundred sixty-four".