380842831 has 2 divisors, whose sum is σ = 380842832. Its totient is φ = 380842830.

The previous prime is 380842829. The next prime is 380842871. The reversal of 380842831 is 138248083.

It is a weak prime.

It is an emirp because it is prime and its reverse (138248083) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 380842831 - 2¹ = 380842829 is a prime.

It is a super-2 number, since 2×380842831² = 290082523848189122, which contains 22 as substring.

Together with 380842829, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (380842811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190421415 + 190421416.

It is an arithmetic number, because the mean of its divisors is an integer number (190421416).

Almost surely, 2^380842831 is an apocalyptic number.

380842831 is a deficient number, since it is larger than the sum of its proper divisors (1).

380842831 is an equidigital number, since it uses as much as digits as its factorization.

380842831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 380842831 is about 19515.1948747636. The cubic root of 380842831 is about 724.8507539003.

The spelling of 380842831 in words is "three hundred eighty million, eight hundred forty-two thousand, eight hundred thirty-one".