22164404 has 24 divisors (see below), whose sum is σ = 39664128. Its totient is φ = 10834560.

The previous prime is 22164397. The next prime is 22164409. The reversal of 22164404 is 40446122.

It is a self number, because there is not a number n which added to its sum of digits gives 22164404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22164409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50972 + ... + 51404.

It is an arithmetic number, because the mean of its divisors is an integer number (1652672).

Almost surely, 2^22164404 is an apocalyptic number.

It is an amenable number.

22164404 is a deficient number, since it is larger than the sum of its proper divisors (17499724).

22164404 is a wasteful number, since it uses less digits than its factorization.

22164404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695 (or 693 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 22164404 is about 4707.9086652143. The cubic root of 22164404 is about 280.9001811084.

The spelling of 22164404 in words is "twenty-two million, one hundred sixty-four thousand, four hundred four".