380665320 has 192 divisors, whose sum is σ = 1361707200. Its totient is φ = 84833280.

The previous prime is 380665319. The next prime is 380665331. The reversal of 380665320 is 23566083.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 240291 + ... + 241869.

It is an arithmetic number, because the mean of its divisors is an integer number (7092225).

Almost surely, 2^380665320 is an apocalyptic number.

380665320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 380665320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (680853600).

380665320 is an abundant number, since it is smaller than the sum of its proper divisors (981041880).

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

380665320 is a wasteful number, since it uses less digits than its factorization.

380665320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1648 (or 1637 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 380665320 is about 19510.6463245070. The cubic root of 380665320 is about 724.7381186540.

The spelling of 380665320 in words is "three hundred eighty million, six hundred sixty-five thousand, three hundred twenty".