380207931 has 4 divisors (see below), whose sum is σ = 506943912. Its totient is φ = 253471952.

The previous prime is 380207923. The next prime is 380207969. The reversal of 380207931 is 139702083.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 139702083 = 3 ⋅46567361.

It is a cyclic number.

It is not a de Polignac number, because 380207931 - 2³ = 380207923 is a prime.

It is a super-2 number, since 2×380207931² = 289116141590601522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 380207892 and 380207901.

It is not an unprimeable number, because it can be changed into a prime (380207921) 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, 63367986 + ... + 63367991.

It is an arithmetic number, because the mean of its divisors is an integer number (126735978).

Almost surely, 2^380207931 is an apocalyptic number.

380207931 is a deficient number, since it is larger than the sum of its proper divisors (126735981).

380207931 is a wasteful number, since it uses less digits than its factorization.

380207931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126735980.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 380207931 is about 19498.9212778553. The cubic root of 380207931 is about 724.4477322516.

The spelling of 380207931 in words is "three hundred eighty million, two hundred seven thousand, nine hundred thirty-one".