22506672 has 20 divisors (see below), whose sum is σ = 58142360. Its totient is φ = 7502208.

The previous prime is 22506667. The next prime is 22506689. The reversal of 22506672 is 27660522.

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, 234397 + ... + 234492.

It is an arithmetic number, because the mean of its divisors is an integer number (2907118).

Almost surely, 2^22506672 is an apocalyptic number.

It is an amenable number.

22506672 is an abundant number, since it is smaller than the sum of its proper divisors (35635688).

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

22506672 is a wasteful number, since it uses less digits than its factorization.

22506672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468900 (or 468894 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 22506672 is about 4744.1197286746. The cubic root of 22506672 is about 282.3387107616.

The spelling of 22506672 in words is "twenty-two million, five hundred six thousand, six hundred seventy-two".