27168380 has 24 divisors (see below), whose sum is σ = 60410448. Its totient is φ = 10227968.

The previous prime is 27168353. The next prime is 27168391. The reversal of 27168380 is 8386172.

27168380 = 191² + 192² + ... + 445².

It is a self number, because there is not a number n which added to its sum of digits gives 27168380.

It is a congruent number.

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, 39614 + ... + 40293.

It is an arithmetic number, because the mean of its divisors is an integer number (2517102).

Almost surely, 2^27168380 is an apocalyptic number.

27168380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27168380 is an abundant number, since it is smaller than the sum of its proper divisors (33242068).

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

27168380 is a wasteful number, since it uses less digits than its factorization.

27168380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79933 (or 79931 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 27168380 is about 5212.3296135222. The cubic root of 27168380 is about 300.6223377228.

The spelling of 27168380 in words is "twenty-seven million, one hundred sixty-eight thousand, three hundred eighty".