380436631 has 2 divisors, whose sum is σ = 380436632. Its totient is φ = 380436630.

The previous prime is 380436607. The next prime is 380436671. The reversal of 380436631 is 136634083.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 380436631 - 2⁷ = 380436503 is a prime.

It is a super-2 number, since 2×380436631² = 289464060413260322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (380436671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190218315 + 190218316.

It is an arithmetic number, because the mean of its divisors is an integer number (190218316).

Almost surely, 2^380436631 is an apocalyptic number.

380436631 is a deficient number, since it is larger than the sum of its proper divisors (1).

380436631 is an equidigital number, since it uses as much as digits as its factorization.

380436631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 380436631 is about 19504.7848232171. The cubic root of 380436631 is about 724.5929580383.

The spelling of 380436631 in words is "three hundred eighty million, four hundred thirty-six thousand, six hundred thirty-one".