27057138 has 32 divisors (see below), whose sum is σ = 55898304. Its totient is φ = 8724672.

The previous prime is 27057137. The next prime is 27057139. The reversal of 27057138 is 83175072.

It is an interprime number because it is at equal distance from previous prime (27057137) and next prime (27057139).

It is a junction number, because it is equal to n+sod(n) for n = 27057099 and 27057108.

It is not an unprimeable number, because it can be changed into a prime (27057137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67956 + ... + 68352.

It is an arithmetic number, because the mean of its divisors is an integer number (1746822).

Almost surely, 2^27057138 is an apocalyptic number.

27057138 is an abundant number, since it is smaller than the sum of its proper divisors (28841166).

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

27057138 is a wasteful number, since it uses less digits than its factorization.

27057138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 27057138 is about 5201.6476235900. The cubic root of 27057138 is about 300.2114731176.

The spelling of 27057138 in words is "twenty-seven million, fifty-seven thousand, one hundred thirty-eight".