22185672 has 16 divisors (see below), whose sum is σ = 55464240. Its totient is φ = 7395216.

The previous prime is 22185671. The next prime is 22185679. The reversal of 22185672 is 27658122.

It is not an unprimeable number, because it can be changed into a prime (22185671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 462178 + ... + 462225.

It is an arithmetic number, because the mean of its divisors is an integer number (3466515).

Almost surely, 2^22185672 is an apocalyptic number.

It is an amenable number.

22185672 is an abundant number, since it is smaller than the sum of its proper divisors (33278568).

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

22185672 is a wasteful number, since it uses less digits than its factorization.

22185672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924412 (or 924408 counting only the distinct ones).

The product of its digits is 13440, while the sum is 33.

The square root of 22185672 is about 4710.1668760247. The cubic root of 22185672 is about 280.9899989264.

The spelling of 22185672 in words is "twenty-two million, one hundred eighty-five thousand, six hundred seventy-two".