274587381 has 8 divisors (see below), whose sum is σ = 406796160. Its totient is φ = 183058236.

The previous prime is 274587377. The next prime is 274587389. The reversal of 274587381 is 183785472.

It is not a de Polignac number, because 274587381 - 2² = 274587377 is a prime.

It is a super-2 number, since 2×274587381² = 150796459608878322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (274587389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5084925 + ... + 5084978.

It is an arithmetic number, because the mean of its divisors is an integer number (50849520).

Almost surely, 2^274587381 is an apocalyptic number.

It is an amenable number.

274587381 is a deficient number, since it is larger than the sum of its proper divisors (132208779).

274587381 is a wasteful number, since it uses less digits than its factorization.

274587381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10169912 (or 10169906 counting only the distinct ones).

The product of its digits is 376320, while the sum is 45.

The square root of 274587381 is about 16570.6783506289. The cubic root of 274587381 is about 649.9703189603.

The spelling of 274587381 in words is "two hundred seventy-four million, five hundred eighty-seven thousand, three hundred eighty-one".