27222980 has 12 divisors (see below), whose sum is σ = 57168300. Its totient is φ = 10889184.

The previous prime is 27222977. The next prime is 27222983. The reversal of 27222980 is 8922272.

It is an interprime number because it is at equal distance from previous prime (27222977) and next prime (27222983).

It can be written as a sum of positive squares in 2 ways, for example, as 18731584 + 8491396 = 4328^2 + 2914^2 .

It is a hoax number, since the sum of its digits (32) 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 (27222983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 680555 + ... + 680594.

It is an arithmetic number, because the mean of its divisors is an integer number (4764025).

Almost surely, 2^27222980 is an apocalyptic number.

27222980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27222980 is an abundant number, since it is smaller than the sum of its proper divisors (29945320).

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

27222980 is a wasteful number, since it uses less digits than its factorization.

27222980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361158 (or 1361156 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 27222980 is about 5217.5645659637. The cubic root of 27222980 is about 300.8235887878.

The spelling of 27222980 in words is "twenty-seven million, two hundred twenty-two thousand, nine hundred eighty".