22164454 has 16 divisors (see below), whose sum is σ = 35883792. Its totient is φ = 10207008.

The previous prime is 22164449. The next prime is 22164463. The reversal of 22164454 is 45446122.

It is a super-2 number, since 2×22164454² = 982526042236232, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 18477 + ... + 19639.

It is an arithmetic number, because the mean of its divisors is an integer number (2242737).

Almost surely, 2^22164454 is an apocalyptic number.

22164454 is a deficient number, since it is larger than the sum of its proper divisors (13719338).

22164454 is a wasteful number, since it uses less digits than its factorization.

22164454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1911.

The product of its digits is 7680, while the sum is 28.

The square root of 22164454 is about 4707.9139754248. The cubic root of 22164454 is about 280.9003923329.

It can be divided in two parts, 2216 and 4454, that added together give a triangular number (6670 = T₁₁₅).

The spelling of 22164454 in words is "twenty-two million, one hundred sixty-four thousand, four hundred fifty-four".