27872380 has 12 divisors (see below), whose sum is σ = 58532040. Its totient is φ = 11148944.

The previous prime is 27872357. The next prime is 27872407. The reversal of 27872380 is 8327872.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 696790 + ... + 696829.

It is an arithmetic number, because the mean of its divisors is an integer number (4877670).

Almost surely, 2^27872380 is an apocalyptic number.

27872380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27872380 is an abundant number, since it is smaller than the sum of its proper divisors (30659660).

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

27872380 is a wasteful number, since it uses less digits than its factorization.

27872380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393628 (or 1393626 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 27872380 is about 5279.4298934639. The cubic root of 27872380 is about 303.1968498685.

The spelling of 27872380 in words is "twenty-seven million, eight hundred seventy-two thousand, three hundred eighty".