22289968 has 10 divisors (see below), whose sum is σ = 43186844. Its totient is φ = 11144976.

The previous prime is 22289963. The next prime is 22289977. The reversal of 22289968 is 86998222.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (22289963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 696546 + ... + 696577.

Almost surely, 2^22289968 is an apocalyptic number.

It is an amenable number.

22289968 is a deficient number, since it is larger than the sum of its proper divisors (20896876).

22289968 is a wasteful number, since it uses less digits than its factorization.

22289968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393131 (or 1393125 counting only the distinct ones).

The product of its digits is 248832, while the sum is 46.

The square root of 22289968 is about 4721.2252646956. The cubic root of 22289968 is about 281.4296269481.

The spelling of 22289968 in words is "twenty-two million, two hundred eighty-nine thousand, nine hundred sixty-eight".