22232315 has 12 divisors (see below), whose sum is σ = 30528336. Its totient is φ = 15225888.

The previous prime is 22232279. The next prime is 22232317. The reversal of 22232315 is 51323222.

It is a de Polignac number, because none of the positive numbers 2^k-22232315 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22232317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27497 + ... + 28293.

It is an arithmetic number, because the mean of its divisors is an integer number (2544028).

Almost surely, 2^22232315 is an apocalyptic number.

22232315 is a deficient number, since it is larger than the sum of its proper divisors (8296021).

22232315 is an frugal number, since it uses more digits than its factorization.

22232315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1606 (or 809 counting only the distinct ones).

The product of its digits is 720, while the sum is 20.

The square root of 22232315 is about 4715.1155871304. The cubic root of 22232315 is about 281.1867782175.

Adding to 22232315 its reverse (51323222), we get a palindrome (73555537).

The spelling of 22232315 in words is "twenty-two million, two hundred thirty-two thousand, three hundred fifteen".