22164456 has 32 divisors (see below), whose sum is σ = 57821760. Its totient is φ = 7066752.

The previous prime is 22164449. The next prime is 22164463. The reversal of 22164456 is 65446122.

It is an interprime number because it is at equal distance from previous prime (22164449) and next prime (22164463).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19525 + ... + 20628.

It is an arithmetic number, because the mean of its divisors is an integer number (1806930).

Almost surely, 2^22164456 is an apocalyptic number.

It is an amenable number.

22164456 is an abundant number, since it is smaller than the sum of its proper divisors (35657304).

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

22164456 is a wasteful number, since it uses less digits than its factorization.

22164456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40185 (or 40181 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

The square root of 22164456 is about 4707.9141878331. The cubic root of 22164456 is about 280.9004007819.

The spelling of 22164456 in words is "twenty-two million, one hundred sixty-four thousand, four hundred fifty-six".