27222140 has 24 divisors (see below), whose sum is σ = 62363952. Its totient is φ = 9898880.

The previous prime is 27222137. The next prime is 27222149. The reversal of 27222140 is 4122272.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27222149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61649 + ... + 62088.

It is an arithmetic number, because the mean of its divisors is an integer number (2598498).

Almost surely, 2^27222140 is an apocalyptic number.

27222140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27222140 is an abundant number, since it is smaller than the sum of its proper divisors (35141812).

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

27222140 is a wasteful number, since it uses less digits than its factorization.

27222140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123757 (or 123755 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 27222140 is about 5217.4840680159. The cubic root of 27222140 is about 300.8204946567.

The spelling of 27222140 in words is "twenty-seven million, two hundred twenty-two thousand, one hundred forty".