22206864 has 20 divisors (see below), whose sum is σ = 57367856. Its totient is φ = 7402272.

The previous prime is 22206859. The next prime is 22206901. The reversal of 22206864 is 46860222.

22206864 is nontrivially palindromic in base 13.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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, 231274 + ... + 231369.

Almost surely, 2^22206864 is an apocalyptic number.

22206864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22206864 is an abundant number, since it is smaller than the sum of its proper divisors (35160992).

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

22206864 is a wasteful number, since it uses less digits than its factorization.

22206864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462654 (or 462648 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 22206864 is about 4712.4159408949. The cubic root of 22206864 is about 281.0794387092.

The spelling of 22206864 in words is "twenty-two million, two hundred six thousand, eight hundred sixty-four".