380931 has 16 divisors (see below), whose sum is σ = 551040. Its totient is φ = 233280.

The previous prime is 380929. The next prime is 380951. The reversal of 380931 is 139083.

It is not a de Polignac number, because 380931 - 2¹ = 380929 is a prime.

It is a super-2 number, since 2×380931² = 290216853522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2256 + ... + 2418.

It is an arithmetic number, because the mean of its divisors is an integer number (34440).

2³⁸⁰⁹³¹ is an apocalyptic number.

380931 is a deficient number, since it is larger than the sum of its proper divisors (170109).

380931 is a wasteful number, since it uses less digits than its factorization.

380931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 380931 is about 617.1960790543. The cubic root of 380931 is about 72.4906686365.

The spelling of 380931 in words is "three hundred eighty thousand, nine hundred thirty-one".