22308164 has 6 divisors (see below), whose sum is σ = 39039294. Its totient is φ = 11154080.

The previous prime is 22308161. The next prime is 22308179. The reversal of 22308164 is 46180322.

It can be written as a sum of positive squares in only one way, i.e., 19096900 + 3211264 = 4370^2 + 1792^2 .

It is a super-3 number, since 3×22308164³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (22308161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2788517 + ... + 2788524.

It is an arithmetic number, because the mean of its divisors is an integer number (6506549).

Almost surely, 2^22308164 is an apocalyptic number.

It is an amenable number.

22308164 is a deficient number, since it is larger than the sum of its proper divisors (16731130).

22308164 is a wasteful number, since it uses less digits than its factorization.

22308164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5577045 (or 5577043 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 22308164 is about 4723.1519137119. The cubic root of 22308164 is about 281.5061860631.

Adding to 22308164 its reverse (46180322), we get a palindrome (68488486).

The spelling of 22308164 in words is "twenty-two million, three hundred eight thousand, one hundred sixty-four".