274381 has 8 divisors (see below), whose sum is σ = 290304. Its totient is φ = 258960.

The previous prime is 274361. The next prime is 274403. The reversal of 274381 is 183472.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 274381 - 2⁵ = 274349 is a prime.

It is a super-2 number, since 2×274381² = 150569866322, which contains 22 as substring.

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

It is a Duffinian number.

274381 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (274301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1560 + ... + 1726.

It is an arithmetic number, because the mean of its divisors is an integer number (36288).

2²⁷⁴³⁸¹ is an apocalyptic number.

It is an amenable number.

274381 is a deficient number, since it is larger than the sum of its proper divisors (15923).

274381 is a wasteful number, since it uses less digits than its factorization.

274381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251.

The product of its digits is 1344, while the sum is 25.

The square root of 274381 is about 523.8138982501. The cubic root of 274381 is about 64.9807438028.

Subtracting from 274381 its reverse (183472), we obtain a palindrome (90909).

The spelling of 274381 in words is "two hundred seventy-four thousand, three hundred eighty-one".