22624668 has 144 divisors (see below), whose sum is σ = 68490240. Its totient is φ = 6220800.

The previous prime is 22624643. The next prime is 22624673. The reversal of 22624668 is 86642622.

22624668 is a `hidden beast` number, since 22 + 624 + 6 + 6 + 8 = 666.

It is a super-2 number, since 2×22624668² = 1023751204220448, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 47 ways as a sum of consecutive naturals, for example, 233196 + ... + 233292.

Almost surely, 2^22624668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22624668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34245120).

22624668 is an abundant number, since it is smaller than the sum of its proper divisors (45865572).

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

22624668 is a wasteful number, since it uses less digits than its factorization.

22624668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168 (or 163 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 22624668 is about 4756.5394984169. The cubic root of 22624668 is about 282.8312578525.

The spelling of 22624668 in words is "twenty-two million, six hundred twenty-four thousand, six hundred sixty-eight".