22166464 has 28 divisors (see below), whose sum is σ = 46304200. Its totient is φ = 10499328.

The previous prime is 22166461. The next prime is 22166471. The reversal of 22166464 is 46466122.

22166464 = 351² + 352² + ... + 478².

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22166461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7899 + ... + 10330.

Almost surely, 2^22166464 is an apocalyptic number.

It is an amenable number.

22166464 is an abundant number, since it is smaller than the sum of its proper divisors (24137736).

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

22166464 is a wasteful number, since it uses less digits than its factorization.

22166464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18260 (or 18250 counting only the distinct ones).

The product of its digits is 13824, while the sum is 31.

The square root of 22166464 is about 4708.1274409260. The cubic root of 22166464 is about 280.9088832966.

The spelling of 22166464 in words is "twenty-two million, one hundred sixty-six thousand, four hundred sixty-four".