274856538 has 32 divisors (see below), whose sum is σ = 614319552. Its totient is φ = 81257600.

The previous prime is 274856537. The next prime is 274856551. The reversal of 274856538 is 835658472.

It is a super-2 number, since 2×274856538² = 151092232962690888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (274856531) 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, 48081 + ... + 53492.

It is an arithmetic number, because the mean of its divisors is an integer number (19197486).

Almost surely, 2^274856538 is an apocalyptic number.

274856538 is an abundant number, since it is smaller than the sum of its proper divisors (339463014).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

274856538 is a wasteful number, since it uses less digits than its factorization.

274856538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101630.

The product of its digits is 1612800, while the sum is 48.

The square root of 274856538 is about 16578.7978454410. The cubic root of 274856538 is about 650.1826216648.

The spelling of 274856538 in words is "two hundred seventy-four million, eight hundred fifty-six thousand, five hundred thirty-eight".