22164470 has 16 divisors (see below), whose sum is σ = 40102128. Its totient is φ = 8820000.

The previous prime is 22164463. The next prime is 22164487. The reversal of 22164470 is 7446122.

It is a Curzon number.

It is a congruent number.

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, 3656 + ... + 7595.

It is an arithmetic number, because the mean of its divisors is an integer number (2506383).

Almost surely, 2^22164470 is an apocalyptic number.

22164470 is a deficient number, since it is larger than the sum of its proper divisors (17937658).

22164470 is a wasteful number, since it uses less digits than its factorization.

22164470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11455.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 22164470 is about 4707.9156746909. The cubic root of 22164470 is about 280.9004599247.

The spelling of 22164470 in words is "twenty-two million, one hundred sixty-four thousand, four hundred seventy".