381965968 has 40 divisors (see below), whose sum is σ = 812894400. Its totient is φ = 173061504.

The previous prime is 381965939. The next prime is 381965971. The reversal of 381965968 is 869569183.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20323 + ... + 34306.

It is an arithmetic number, because the mean of its divisors is an integer number (20322360).

Almost surely, 2^381965968 is an apocalyptic number.

381965968 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

381965968 is an abundant number, since it is smaller than the sum of its proper divisors (430928432).

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

381965968 is a wasteful number, since it uses less digits than its factorization.

381965968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54679 (or 54673 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 55.

The square root of 381965968 is about 19543.9496520023. The cubic root of 381965968 is about 725.5626028611.

The spelling of 381965968 in words is "three hundred eighty-one million, nine hundred sixty-five thousand, nine hundred sixty-eight".