22645316 has 12 divisors (see below), whose sum is σ = 39662700. Its totient is φ = 11313120.

The previous prime is 22645307. The next prime is 22645327. The reversal of 22645316 is 61354622.

It can be written as a sum of positive squares in 2 ways, for example, as 18524416 + 4120900 = 4304^2 + 2030^2 .

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7610 + ... + 10158.

It is an arithmetic number, because the mean of its divisors is an integer number (3305225).

Almost surely, 2^22645316 is an apocalyptic number.

It is an amenable number.

22645316 is a deficient number, since it is larger than the sum of its proper divisors (17017384).

22645316 is a wasteful number, since it uses less digits than its factorization.

22645316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4774 (or 4772 counting only the distinct ones).

The product of its digits is 8640, while the sum is 29.

The square root of 22645316 is about 4758.7094889266. The cubic root of 22645316 is about 282.9172719936.

Adding to 22645316 its reverse (61354622), we get a palindrome (83999938).

The spelling of 22645316 in words is "twenty-two million, six hundred forty-five thousand, three hundred sixteen".