274385 has 4 divisors (see below), whose sum is σ = 329268. Its totient is φ = 219504.

The previous prime is 274361. The next prime is 274403. The reversal of 274385 is 583472.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 208849 + 65536 = 457^2 + 256^2 .

It is a cyclic number.

It is not a de Polignac number, because 274385 - 2¹⁸ = 12241 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 274385.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27434 + ... + 27443.

It is an arithmetic number, because the mean of its divisors is an integer number (82317).

2²⁷⁴³⁸⁵ is an apocalyptic number.

It is an amenable number.

274385 is a deficient number, since it is larger than the sum of its proper divisors (54883).

274385 is an equidigital number, since it uses as much as digits as its factorization.

274385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54882.

The product of its digits is 6720, while the sum is 29.

The square root of 274385 is about 523.8177163861. The cubic root of 274385 is about 64.9810595702.

The spelling of 274385 in words is "two hundred seventy-four thousand, three hundred eighty-five".