22988331 has 12 divisors (see below), whose sum is σ = 34015800. Its totient is φ = 14951520.

The previous prime is 22988327. The next prime is 22988333. The reversal of 22988331 is 13388922.

It is a happy number.

It is not a de Polignac number, because 22988331 - 2² = 22988327 is a prime.

It is a super-2 number, since 2×22988331² = 1056926724331122, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (22988333) 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, 30781 + ... + 31518.

It is an arithmetic number, because the mean of its divisors is an integer number (2834650).

Almost surely, 2^22988331 is an apocalyptic number.

22988331 is a deficient number, since it is larger than the sum of its proper divisors (11027469).

22988331 is a wasteful number, since it uses less digits than its factorization.

22988331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62346 (or 62343 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 22988331 is about 4794.6147916178. The cubic root of 22988331 is about 284.3385955250.

The spelling of 22988331 in words is "twenty-two million, nine hundred eighty-eight thousand, three hundred thirty-one".