22502316 has 24 divisors (see below), whose sum is σ = 53497584. Its totient is φ = 7359040.

The previous prime is 22502299. The next prime is 22502353. The reversal of 22502316 is 61320522.

It is a nialpdrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 22502292 and 22502301.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17055 + ... + 18326.

It is an arithmetic number, because the mean of its divisors is an integer number (2229066).

Almost surely, 2^22502316 is an apocalyptic number.

It is an amenable number.

22502316 is an abundant number, since it is smaller than the sum of its proper divisors (30995268).

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

22502316 is a wasteful number, since it uses less digits than its factorization.

22502316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35441 (or 35439 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 22502316 is about 4743.6606118060. The cubic root of 22502316 is about 282.3204947295.

Adding to 22502316 its reverse (61320522), we get a palindrome (83822838).

The spelling of 22502316 in words is "twenty-two million, five hundred two thousand, three hundred sixteen".