381340684 has 24 divisors (see below), whose sum is σ = 693078848. Its totient is φ = 183450960.

The previous prime is 381340681. The next prime is 381340693. The reversal of 381340684 is 486043183.

It is not an unprimeable number, because it can be changed into a prime (381340681) 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, 5022 + ... + 28069.

Almost surely, 2^381340684 is an apocalyptic number.

It is an amenable number.

381340684 is a deficient number, since it is larger than the sum of its proper divisors (311738164).

381340684 is a wasteful number, since it uses less digits than its factorization.

381340684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33205 (or 33203 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 381340684 is about 19527.9462309788. The cubic root of 381340684 is about 725.1664676800.

The spelling of 381340684 in words is "three hundred eighty-one million, three hundred forty thousand, six hundred eighty-four".