27820268 has 24 divisors (see below), whose sum is σ = 57437184. Its totient is φ = 11538000.

The previous prime is 27820259. The next prime is 27820277. The reversal of 27820268 is 86202872.

It is an interprime number because it is at equal distance from previous prime (27820259) and next prime (27820277).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15158 + ... + 16893.

It is an arithmetic number, because the mean of its divisors is an integer number (2393216).

Almost surely, 2^27820268 is an apocalyptic number.

27820268 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

27820268 is an abundant number, since it is smaller than the sum of its proper divisors (29616916).

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

27820268 is a wasteful number, since it uses less digits than its factorization.

27820268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32093 (or 32091 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 27820268 is about 5274.4922030467. The cubic root of 27820268 is about 303.0077731852.

The spelling of 27820268 in words is "twenty-seven million, eight hundred twenty thousand, two hundred sixty-eight".