274239 has 16 divisors (see below), whose sum is σ = 464640. Its totient is φ = 156600.

The previous prime is 274237. The next prime is 274243. The reversal of 274239 is 932472.

It is not a de Polignac number, because 274239 - 2¹ = 274237 is a prime.

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

It is a Harshad number since it is a multiple of its sum of digits (27).

274239 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (274237) 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, 537 + ... + 914.

It is an arithmetic number, because the mean of its divisors is an integer number (29040).

2²⁷⁴²³⁹ is an apocalyptic number.

274239 is a deficient number, since it is larger than the sum of its proper divisors (190401).

274239 is a wasteful number, since it uses less digits than its factorization.

274239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1467 (or 1461 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 274239 is about 523.6783363860. The cubic root of 274239 is about 64.9695320719.

The spelling of 274239 in words is "two hundred seventy-four thousand, two hundred thirty-nine".