27240291 has 12 divisors (see below), whose sum is σ = 42373968. Its totient is φ = 16763184.

The previous prime is 27240259. The next prime is 27240293. The reversal of 27240291 is 19204272.

It is not a de Polignac number, because 27240291 - 2⁵ = 27240259 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (27240293) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 116295 + ... + 116528.

It is an arithmetic number, because the mean of its divisors is an integer number (3531164).

Almost surely, 2^27240291 is an apocalyptic number.

27240291 is a deficient number, since it is larger than the sum of its proper divisors (15133677).

27240291 is a wasteful number, since it uses less digits than its factorization.

27240291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232842 (or 232839 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 27240291 is about 5219.2232180661. The cubic root of 27240291 is about 300.8873395077.

The spelling of 27240291 in words is "twenty-seven million, two hundred forty thousand, two hundred ninety-one".