22270164 has 48 divisors (see below), whose sum is σ = 61974528. Its totient is φ = 6085728.

The previous prime is 22270159. The next prime is 22270177. The reversal of 22270164 is 46107222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3832 + ... + 7695.

It is an arithmetic number, because the mean of its divisors is an integer number (1291136).

Almost surely, 2^22270164 is an apocalyptic number.

It is an amenable number.

22270164 is an abundant number, since it is smaller than the sum of its proper divisors (39704364).

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

22270164 is a wasteful number, since it uses less digits than its factorization.

22270164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11564 (or 11562 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 22270164 is about 4719.1274617243. The cubic root of 22270164 is about 281.3462548565.

Adding to 22270164 its reverse (46107222), we get a palindrome (68377386).

The spelling of 22270164 in words is "twenty-two million, two hundred seventy thousand, one hundred sixty-four".