274574538 has 72 divisors (see below), whose sum is σ = 696056868. Its totient is φ = 77995008.

The previous prime is 274574527. The next prime is 274574549. The reversal of 274574538 is 835475472.

274574538 is a `hidden beast` number, since 2 + 7 + 45 + 74 + 538 = 666.

It is an interprime number because it is at equal distance from previous prime (274574527) and next prime (274574549).

It can be written as a sum of positive squares in 2 ways, for example, as 273141729 + 1432809 = 16527^2 + 1197^2 .

It is a junction number, because it is equal to n+sod(n) for n = 274574493 and 274574502.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 169420 + ... + 171032.

Almost surely, 2^274574538 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 274574538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (348028434).

274574538 is an abundant number, since it is smaller than the sum of its proper divisors (421482330).

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

274574538 is a wasteful number, since it uses less digits than its factorization.

274574538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1828 (or 1818 counting only the distinct ones).

The product of its digits is 940800, while the sum is 45.

The square root of 274574538 is about 16570.2908242432. The cubic root of 274574538 is about 649.9601853325.

The spelling of 274574538 in words is "two hundred seventy-four million, five hundred seventy-four thousand, five hundred thirty-eight".