22607664 has 20 divisors (see below), whose sum is σ = 58403256. Its totient is φ = 7535872.

The previous prime is 22607657. The next prime is 22607681. The reversal of 22607664 is 46670622.

It is a super-2 number, since 2×22607664² = 1022212943073792, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 235449 + ... + 235544.

Almost surely, 2^22607664 is an apocalyptic number.

22607664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22607664 is an abundant number, since it is smaller than the sum of its proper divisors (35795592).

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

22607664 is a wasteful number, since it uses less digits than its factorization.

22607664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471004 (or 470998 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 22607664 is about 4754.7517285343. The cubic root of 22607664 is about 282.7603843552.

The spelling of 22607664 in words is "twenty-two million, six hundred seven thousand, six hundred sixty-four".