22427164 has 12 divisors (see below), whose sum is σ = 40205088. Its totient is φ = 10940000.

The previous prime is 22427161. The next prime is 22427173. The reversal of 22427164 is 46172422.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22427161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68212 + ... + 68539.

It is an arithmetic number, because the mean of its divisors is an integer number (3350424).

Almost surely, 2^22427164 is an apocalyptic number.

It is an amenable number.

22427164 is a deficient number, since it is larger than the sum of its proper divisors (17777924).

22427164 is a wasteful number, since it uses less digits than its factorization.

22427164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136796 (or 136794 counting only the distinct ones).

The product of its digits is 5376, while the sum is 28.

The square root of 22427164 is about 4735.7326782664. The cubic root of 22427164 is about 282.0058513616.

Adding to 22427164 its reverse (46172422), we get a palindrome (68599586).

The spelling of 22427164 in words is "twenty-two million, four hundred twenty-seven thousand, one hundred sixty-four".