381674831 has 6 divisors (see below), whose sum is σ = 402820632. Its totient is φ = 361586340.

The previous prime is 381674819. The next prime is 381674851. The reversal of 381674831 is 138476183.

It is not a de Polignac number, because 381674831 - 2²² = 377480527 is a prime.

It is a super-2 number, since 2×381674831² = 291351353237757122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381674801) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 528275 + ... + 528996.

It is an arithmetic number, because the mean of its divisors is an integer number (67136772).

Almost surely, 2^381674831 is an apocalyptic number.

381674831 is a deficient number, since it is larger than the sum of its proper divisors (21145801).

381674831 is a wasteful number, since it uses less digits than its factorization.

381674831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057309 (or 1057290 counting only the distinct ones).

The product of its digits is 96768, while the sum is 41.

The square root of 381674831 is about 19536.4999680086. The cubic root of 381674831 is about 725.3782131257.

The spelling of 381674831 in words is "three hundred eighty-one million, six hundred seventy-four thousand, eight hundred thirty-one".