27318380 has 12 divisors (see below), whose sum is σ = 57368640. Its totient is φ = 10927344.

The previous prime is 27318367. The next prime is 27318397. The reversal of 27318380 is 8381372.

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 3 ways as a sum of consecutive naturals, for example, 682940 + ... + 682979.

It is an arithmetic number, because the mean of its divisors is an integer number (4780720).

Almost surely, 2^27318380 is an apocalyptic number.

27318380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27318380 is an abundant number, since it is smaller than the sum of its proper divisors (30050260).

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

27318380 is a wasteful number, since it uses less digits than its factorization.

27318380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1365928 (or 1365926 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 27318380 is about 5226.6987669082. The cubic root of 27318380 is about 301.1745803864.

It can be divided in two parts, 2731 and 8380, that added together give a palindrome (11111).

The spelling of 27318380 in words is "twenty-seven million, three hundred eighteen thousand, three hundred eighty".