27139752 has 128 divisors (see below), whose sum is σ = 84240000. Its totient is φ = 8045568.

The previous prime is 27139741. The next prime is 27139781. The reversal of 27139752 is 25793172.

It is a super-2 number, since 2×27139752² = 1473132277243008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 31 ways as a sum of consecutive naturals, for example, 69574 + ... + 69962.

It is an arithmetic number, because the mean of its divisors is an integer number (658125).

Almost surely, 2^27139752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27139752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42120000).

27139752 is an abundant number, since it is smaller than the sum of its proper divisors (57100248).

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

27139752 is a wasteful number, since it uses less digits than its factorization.

27139752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440 (or 430 counting only the distinct ones).

The product of its digits is 26460, while the sum is 36.

The square root of 27139752 is about 5209.5827088165. The cubic root of 27139752 is about 300.5167095266.

The spelling of 27139752 in words is "twenty-seven million, one hundred thirty-nine thousand, seven hundred fifty-two".