22664488 has 32 divisors (see below), whose sum is σ = 52983360. Its totient is φ = 8830080.

The previous prime is 22664471. The next prime is 22664491. The reversal of 22664488 is 88446622.

It is a zygodrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 22664488.

It is an unprimeable number.

It is an upside-down number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17781 + ... + 19012.

It is an arithmetic number, because the mean of its divisors is an integer number (1655730).

Almost surely, 2^22664488 is an apocalyptic number.

22664488 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

22664488 is an abundant number, since it is smaller than the sum of its proper divisors (30318872).

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

22664488 is a wasteful number, since it uses less digits than its factorization.

22664488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36817 (or 36813 counting only the distinct ones).

The product of its digits is 147456, while the sum is 40.

The square root of 22664488 is about 4760.7234744312. The cubic root of 22664488 is about 282.9970907066.

The spelling of 22664488 in words is "twenty-two million, six hundred sixty-four thousand, four hundred eighty-eight".