380875081 has 4 divisors (see below), whose sum is σ = 382509972. Its totient is φ = 379240192.

The previous prime is 380875057. The next prime is 380875087. The reversal of 380875081 is 180578083.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 207821056 + 173054025 = 14416^2 + 13155^2 .

It is a cyclic number.

It is not a de Polignac number, because 380875081 - 2⁵ = 380875049 is a prime.

It is a super-2 number, since 2×380875081² = 290131654653513122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (380875087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 817096 + ... + 817561.

It is an arithmetic number, because the mean of its divisors is an integer number (95627493).

Almost surely, 2^380875081 is an apocalyptic number.

It is an amenable number.

380875081 is a deficient number, since it is larger than the sum of its proper divisors (1634891).

380875081 is a wasteful number, since it uses less digits than its factorization.

380875081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1634890.

The product of its (nonzero) digits is 53760, while the sum is 40.

The square root of 380875081 is about 19516.0211364919. The cubic root of 380875081 is about 724.8712135887.

The spelling of 380875081 in words is "three hundred eighty million, eight hundred seventy-five thousand, eighty-one".