22731316 has 6 divisors (see below), whose sum is σ = 39779810. Its totient is φ = 11365656.

The previous prime is 22731311. The next prime is 22731323. The reversal of 22731316 is 61313722.

It can be written as a sum of positive squares in only one way, i.e., 17255716 + 5475600 = 4154^2 + 2340^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22731311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2841411 + ... + 2841418.

Almost surely, 2^22731316 is an apocalyptic number.

It is an amenable number.

22731316 is a deficient number, since it is larger than the sum of its proper divisors (17048494).

22731316 is a wasteful number, since it uses less digits than its factorization.

22731316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5682833 (or 5682831 counting only the distinct ones).

The product of its digits is 1512, while the sum is 25.

The square root of 22731316 is about 4767.7369893902. The cubic root of 22731316 is about 283.2749640623.

The spelling of 22731316 in words is "twenty-two million, seven hundred thirty-one thousand, three hundred sixteen".