380724 has 12 divisors (see below), whose sum is σ = 888384. Its totient is φ = 126904.

The previous prime is 380713. The next prime is 380729. The reversal of 380724 is 427083.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 380694 and 380703.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 380724.

It is not an unprimeable number, because it can be changed into a prime (380729) by changing a digit.

380724 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15852 + ... + 15875.

It is an arithmetic number, because the mean of its divisors is an integer number (74032).

2³⁸⁰⁷²⁴ is an apocalyptic number.

It is an amenable number.

380724 is an abundant number, since it is smaller than the sum of its proper divisors (507660).

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

380724 is a wasteful number, since it uses less digits than its factorization.

380724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31734 (or 31732 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 380724 is about 617.0283623951. The cubic root of 380724 is about 72.4775356481.

The spelling of 380724 in words is "three hundred eighty thousand, seven hundred twenty-four".