381838674 has 24 divisors (see below), whose sum is σ = 888360048. Its totient is φ = 109096680.

The previous prime is 381838673. The next prime is 381838693. The reversal of 381838674 is 476838183.

It is not an unprimeable number, because it can be changed into a prime (381838673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 649092 + ... + 649679.

It is an arithmetic number, because the mean of its divisors is an integer number (37015002).

Almost surely, 2^381838674 is an apocalyptic number.

381838674 is an abundant number, since it is smaller than the sum of its proper divisors (506521374).

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

381838674 is a wasteful number, since it uses less digits than its factorization.

381838674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1298790 (or 1298783 counting only the distinct ones).

The product of its digits is 774144, while the sum is 48.

The square root of 381838674 is about 19540.6927717520. The cubic root of 381838674 is about 725.4819935612.

The spelling of 381838674 in words is "three hundred eighty-one million, eight hundred thirty-eight thousand, six hundred seventy-four".