27138040 has 16 divisors (see below), whose sum is σ = 61060680. Its totient is φ = 10855200.

The previous prime is 27138037. The next prime is 27138047. The reversal of 27138040 is 4083172.

It is a junction number, because it is equal to n+sod(n) for n = 27137996 and 27138014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27138047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 339186 + ... + 339265.

Almost surely, 2^27138040 is an apocalyptic number.

27138040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27138040 is an abundant number, since it is smaller than the sum of its proper divisors (33922640).

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

27138040 is a wasteful number, since it uses less digits than its factorization.

27138040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678462 (or 678458 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 27138040 is about 5209.4183936405. The cubic root of 27138040 is about 300.5103904388.

The spelling of 27138040 in words is "twenty-seven million, one hundred thirty-eight thousand, forty".