27340731 has 24 divisors (see below), whose sum is σ = 43281264. Its totient is φ = 16493760.

The previous prime is 27340717. The next prime is 27340759. The reversal of 27340731 is 13704372.

It is not a de Polignac number, because 27340731 - 2⁷ = 27340603 is a prime.

It is a super-2 number, since 2×27340731² = 1495031143228722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27340695 and 27340704.

It is not an unprimeable number, because it can be changed into a prime (27340771) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26925 + ... + 27921.

It is an arithmetic number, because the mean of its divisors is an integer number (1803386).

Almost surely, 2^27340731 is an apocalyptic number.

27340731 is a deficient number, since it is larger than the sum of its proper divisors (15940533).

27340731 is a wasteful number, since it uses less digits than its factorization.

27340731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1291 (or 1288 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 27340731 is about 5228.8364862558. The cubic root of 27340731 is about 301.2566950413.

The spelling of 27340731 in words is "twenty-seven million, three hundred forty thousand, seven hundred thirty-one".