379991328 has 24 divisors (see below), whose sum is σ = 997477488. Its totient is φ = 126663744.

The previous prime is 379991323. The next prime is 379991333. The reversal of 379991328 is 823199973.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (379991323) and next prime (379991333).

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (379991323) 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, 1979026 + ... + 1979217.

It is an arithmetic number, because the mean of its divisors is an integer number (41561562).

Almost surely, 2^379991328 is an apocalyptic number.

It is an amenable number.

379991328 is an abundant number, since it is smaller than the sum of its proper divisors (617486160).

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

379991328 is a wasteful number, since it uses less digits than its factorization.

379991328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3958256 (or 3958248 counting only the distinct ones).

The product of its digits is 734832, while the sum is 51.

The square root of 379991328 is about 19493.3662562421. The cubic root of 379991328 is about 724.3101344204.

The spelling of 379991328 in words is "three hundred seventy-nine million, nine hundred ninety-one thousand, three hundred twenty-eight".