380705724 has 96 divisors (see below), whose sum is σ = 1131594240. Its totient is φ = 108428544.

The previous prime is 380705711. The next prime is 380705737. The reversal of 380705724 is 427507083.

380705724 is a `hidden beast` number, since 3 + 80 + 7 + 0 + 572 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (380705711) and next prime (380705737).

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 326767 + ... + 327929.

It is an arithmetic number, because the mean of its divisors is an integer number (11787440).

Almost surely, 2^380705724 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 380705724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (565797120).

380705724 is an abundant number, since it is smaller than the sum of its proper divisors (750888516).

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

380705724 is a wasteful number, since it uses less digits than its factorization.

380705724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1616 (or 1608 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 380705724 is about 19511.6817317216. The cubic root of 380705724 is about 724.7637590975.

The spelling of 380705724 in words is "three hundred eighty million, seven hundred five thousand, seven hundred twenty-four".