27279420 has 48 divisors (see below), whose sum is σ = 87295488. Its totient is φ = 6235200.

The previous prime is 27279389. The next prime is 27279451. The reversal of 27279420 is 2497272.

It is an interprime number because it is at equal distance from previous prime (27279389) and next prime (27279451).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32056 + ... + 32895.

It is an arithmetic number, because the mean of its divisors is an integer number (1818656).

Almost surely, 2^27279420 is an apocalyptic number.

27279420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27279420 is an abundant number, since it is smaller than the sum of its proper divisors (60016068).

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

27279420 is a wasteful number, since it uses less digits than its factorization.

27279420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64970 (or 64968 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 27279420 is about 5222.9704192155. The cubic root of 27279420 is about 301.0313392902.

The spelling of 27279420 in words is "twenty-seven million, two hundred seventy-nine thousand, four hundred twenty".