381728676 has 48 divisors (see below), whose sum is σ = 1077826176. Its totient is φ = 102649344.

The previous prime is 381728671. The next prime is 381728713. The reversal of 381728676 is 676827183.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (381728671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132231 + ... + 135086.

It is an arithmetic number, because the mean of its divisors is an integer number (22454712).

Almost surely, 2^381728676 is an apocalyptic number.

It is an amenable number.

381728676 is an abundant number, since it is smaller than the sum of its proper divisors (696097500).

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

381728676 is a wasteful number, since it uses less digits than its factorization.

381728676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267348 (or 267346 counting only the distinct ones).

The product of its digits is 677376, while the sum is 48.

The square root of 381728676 is about 19537.8779809886. The cubic root of 381728676 is about 725.4123225737.

The spelling of 381728676 in words is "three hundred eighty-one million, seven hundred twenty-eight thousand, six hundred seventy-six".