27939402 has 24 divisors (see below), whose sum is σ = 61441536. Its totient is φ = 9173736.

The previous prime is 27939389. The next prime is 27939413. The reversal of 27939402 is 20493972.

It is a super-2 number, since 2×27939402² = 1561220368235208, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10378 + ... + 12789.

It is an arithmetic number, because the mean of its divisors is an integer number (2560064).

Almost surely, 2^27939402 is an apocalyptic number.

27939402 is an abundant number, since it is smaller than the sum of its proper divisors (33502134).

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

27939402 is a wasteful number, since it uses less digits than its factorization.

27939402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23242 (or 23239 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 27939402 is about 5285.7735479303. The cubic root of 27939402 is about 303.4396779912.

The spelling of 27939402 in words is "twenty-seven million, nine hundred thirty-nine thousand, four hundred two".