380831765 has 8 divisors (see below), whose sum is σ = 465621048. Its totient is φ = 298916800.

The previous prime is 380831753. The next prime is 380831777. The reversal of 380831765 is 567138083.

It is an interprime number because it is at equal distance from previous prime (380831753) and next prime (380831777).

It can be written as a sum of positive squares in 4 ways, for example, as 57623281 + 323208484 = 7591^2 + 17978^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 380831765 - 2¹⁰ = 380830741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 718286 + ... + 718815.

It is an arithmetic number, because the mean of its divisors is an integer number (58202631).

Almost surely, 2^380831765 is an apocalyptic number.

It is an amenable number.

380831765 is a deficient number, since it is larger than the sum of its proper divisors (84789283).

380831765 is a wasteful number, since it uses less digits than its factorization.

380831765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1437159.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 380831765 is about 19514.9113500420. The cubic root of 380831765 is about 724.8437332648.

The spelling of 380831765 in words is "three hundred eighty million, eight hundred thirty-one thousand, seven hundred sixty-five".