381473768 has 64 divisors (see below), whose sum is σ = 812246400. Its totient is φ = 166636800.

The previous prime is 381473767. The next prime is 381473783. The reversal of 381473768 is 867374183.

It is not an unprimeable number, because it can be changed into a prime (381473767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 240803 + ... + 242381.

It is an arithmetic number, because the mean of its divisors is an integer number (12691350).

Almost surely, 2^381473768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 381473768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (406123200).

381473768 is an abundant number, since it is smaller than the sum of its proper divisors (430772632).

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

381473768 is a wasteful number, since it uses less digits than its factorization.

381473768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1722 (or 1718 counting only the distinct ones).

The product of its digits is 677376, while the sum is 47.

The square root of 381473768 is about 19531.3534605260. The cubic root of 381473768 is about 725.2508164296.

The spelling of 381473768 in words is "three hundred eighty-one million, four hundred seventy-three thousand, seven hundred sixty-eight".