381876928 has 28 divisors (see below), whose sum is σ = 766312920. Its totient is φ = 188790272.

The previous prime is 381876923. The next prime is 381876947. The reversal of 381876928 is 829678183.

It is not an unprimeable number, because it can be changed into a prime (381876923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27826 + ... + 39217.

Almost surely, 2^381876928 is an apocalyptic number.

It is an amenable number.

381876928 is an abundant number, since it is smaller than the sum of its proper divisors (384435992).

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

381876928 is an equidigital number, since it uses as much as digits as its factorization.

381876928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67144 (or 67134 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 52.

The square root of 381876928 is about 19541.6715764031. The cubic root of 381876928 is about 725.5062199019.

The spelling of 381876928 in words is "three hundred eighty-one million, eight hundred seventy-six thousand, nine hundred twenty-eight".