22164508 has 6 divisors (see below), whose sum is σ = 38787896. Its totient is φ = 11082252.

The previous prime is 22164503. The next prime is 22164509. The reversal of 22164508 is 80546122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22164503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2770560 + ... + 2770567.

Almost surely, 2^22164508 is an apocalyptic number.

It is an amenable number.

22164508 is a deficient number, since it is larger than the sum of its proper divisors (16623388).

22164508 is a wasteful number, since it uses less digits than its factorization.

22164508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5541131 (or 5541129 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 22164508 is about 4707.9197104454. The cubic root of 22164508 is about 280.9006204551.

It can be divided in two parts, 2216 and 4508, that added together give a square (6724 = 82²).

The spelling of 22164508 in words is "twenty-two million, one hundred sixty-four thousand, five hundred eight".