22432664 has 8 divisors (see below), whose sum is σ = 42061260. Its totient is φ = 11216328.

The previous prime is 22432661. The next prime is 22432691. The reversal of 22432664 is 46623422.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22432661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1402034 + ... + 1402049.

Almost surely, 2^22432664 is an apocalyptic number.

It is an amenable number.

22432664 is a deficient number, since it is larger than the sum of its proper divisors (19628596).

22432664 is a wasteful number, since it uses less digits than its factorization.

22432664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2804089 (or 2804085 counting only the distinct ones).

The product of its digits is 13824, while the sum is 29.

The square root of 22432664 is about 4736.3133342295. The cubic root of 22432664 is about 282.0289023577.

The spelling of 22432664 in words is "twenty-two million, four hundred thirty-two thousand, six hundred sixty-four".