27708140 has 24 divisors (see below), whose sum is σ = 58373952. Its totient is φ = 11047680.

The previous prime is 27708119. The next prime is 27708167. The reversal of 27708140 is 4180772.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

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, 4685 + ... + 8795.

It is an arithmetic number, because the mean of its divisors is an integer number (2432248).

Almost surely, 2^27708140 is an apocalyptic number.

27708140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27708140 is an abundant number, since it is smaller than the sum of its proper divisors (30665812).

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

27708140 is a wasteful number, since it uses less digits than its factorization.

27708140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4457 (or 4455 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 27708140 is about 5263.8522015725. The cubic root of 27708140 is about 302.6001398760.

The spelling of 27708140 in words is "twenty-seven million, seven hundred eight thousand, one hundred forty".