22601664 has 42 divisors (see below), whose sum is σ = 64785240. Its totient is φ = 7533696.

The previous prime is 22601633. The next prime is 22601681. The reversal of 22601664 is 46610622.

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 5 ways as a sum of consecutive naturals, for example, 19044 + ... + 20195.

Almost surely, 2^22601664 is an apocalyptic number.

22601664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22601664 is an abundant number, since it is smaller than the sum of its proper divisors (42183576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22601664 is a wasteful number, since it uses less digits than its factorization.

22601664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39257 (or 39244 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 22601664 is about 4754.1207388959. The cubic root of 22601664 is about 282.7353675819.

The spelling of 22601664 in words is "twenty-two million, six hundred one thousand, six hundred sixty-four".