27267138 has 16 divisors (see below), whose sum is σ = 60593760. Its totient is φ = 9089028.

The previous prime is 27267137. The next prime is 27267143. The reversal of 27267138 is 83176272.

It is a super-2 number, since 2×27267138² = 1486993629422088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27267137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252420 + ... + 252527.

It is an arithmetic number, because the mean of its divisors is an integer number (3787110).

Almost surely, 2^27267138 is an apocalyptic number.

27267138 is an abundant number, since it is smaller than the sum of its proper divisors (33326622).

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

27267138 is a wasteful number, since it uses less digits than its factorization.

27267138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504958 (or 504952 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 27267138 is about 5221.7945191285. The cubic root of 27267138 is about 300.9861547772.

The spelling of 27267138 in words is "twenty-seven million, two hundred sixty-seven thousand, one hundred thirty-eight".