22164604 has 24 divisors (see below), whose sum is σ = 48359808. Its totient is φ = 8635440.

The previous prime is 22164601. The next prime is 22164629. The reversal of 22164604 is 40646122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22164601) 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, 35674 + ... + 36289.

It is an arithmetic number, because the mean of its divisors is an integer number (2014992).

Almost surely, 2^22164604 is an apocalyptic number.

It is an amenable number.

22164604 is an abundant number, since it is smaller than the sum of its proper divisors (26195204).

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

22164604 is a wasteful number, since it uses less digits than its factorization.

22164604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71985 (or 71983 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 22164604 is about 4707.9299060203. The cubic root of 22164604 is about 280.9010260047.

The spelling of 22164604 in words is "twenty-two million, one hundred sixty-four thousand, six hundred four".