27939140 has 24 divisors (see below), whose sum is σ = 59418240. Its totient is φ = 11033568.

The previous prime is 27939133. The next prime is 27939167. The reversal of 27939140 is 4193972.

It is a self number, because there is not a number n which added to its sum of digits gives 27939140.

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, 7262 + ... + 10421.

It is an arithmetic number, because the mean of its divisors is an integer number (2475760).

Almost surely, 2^27939140 is an apocalyptic number.

27939140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27939140 is an abundant number, since it is smaller than the sum of its proper divisors (31479100).

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

27939140 is a wasteful number, since it uses less digits than its factorization.

27939140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17771 (or 17769 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 27939140 is about 5285.7487643663. The cubic root of 27939140 is about 303.4387294927.

The spelling of 27939140 in words is "twenty-seven million, nine hundred thirty-nine thousand, one hundred forty".