22274931 has 24 divisors (see below), whose sum is σ = 34845952. Its totient is φ = 12398400.

The previous prime is 22274927. The next prime is 22274933. The reversal of 22274931 is 13947222.

It is not a de Polignac number, because 22274931 - 2² = 22274927 is a prime.

It is a super-2 number, since 2×22274931² = 992345102109522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22274933) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34986 + ... + 35616.

Almost surely, 2^22274931 is an apocalyptic number.

22274931 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22274931 is a deficient number, since it is larger than the sum of its proper divisors (12571021).

22274931 is an equidigital number, since it uses as much as digits as its factorization.

22274931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723 (or 682 counting only the distinct ones).

The product of its digits is 6048, while the sum is 30.

The square root of 22274931 is about 4719.6325068802. The cubic root of 22274931 is about 281.3663277803.

The spelling of 22274931 in words is "twenty-two million, two hundred seventy-four thousand, nine hundred thirty-one".