380915406 has 64 divisors (see below), whose sum is σ = 887040000. Its totient is φ = 121002336.

The previous prime is 380915389. The next prime is 380915419. The reversal of 380915406 is 604519083.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 122175 + ... + 125253.

It is an arithmetic number, because the mean of its divisors is an integer number (13860000).

Almost surely, 2^380915406 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 380915406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (443520000).

380915406 is an abundant number, since it is smaller than the sum of its proper divisors (506124594).

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

380915406 is a wasteful number, since it uses less digits than its factorization.

380915406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3198 (or 3192 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 380915406 is about 19517.0542346943. The cubic root of 380915406 is about 724.8967945045.

The spelling of 380915406 in words is "three hundred eighty million, nine hundred fifteen thousand, four hundred six".