274805 has 16 divisors (see below), whose sum is σ = 361584. Its totient is φ = 199680.

The previous prime is 274787. The next prime is 274811. The reversal of 274805 is 508472.

It can be written as a sum of positive squares in 8 ways, for example, as 3364 + 271441 = 58^2 + 521^2 .

It is not a de Polignac number, because 274805 - 2¹² = 270709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 274805.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4475 + ... + 4535.

It is an arithmetic number, because the mean of its divisors is an integer number (22599).

2²⁷⁴⁸⁰⁵ is an apocalyptic number.

It is an amenable number.

274805 is a deficient number, since it is larger than the sum of its proper divisors (86779).

274805 is a wasteful number, since it uses less digits than its factorization.

274805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 274805 is about 524.2184659090. The cubic root of 274805 is about 65.0141980819.

The spelling of 274805 in words is "two hundred seventy-four thousand, eight hundred five".