380857031 has 4 divisors (see below), whose sum is σ = 381022200. Its totient is φ = 380691864.

The previous prime is 380857019. The next prime is 380857049. The reversal of 380857031 is 130758083.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130758083 = 3613 ⋅36191.

It is a cyclic number.

It is not a de Polignac number, because 380857031 - 2¹⁸ = 380594887 is a prime.

It is a super-2 number, since 2×380857031² = 290104156124269922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 380856982 and 380857000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380857051) 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 in 3 ways as a sum of consecutive naturals, for example, 79076 + ... + 83753.

It is an arithmetic number, because the mean of its divisors is an integer number (95255550).

Almost surely, 2^380857031 is an apocalyptic number.

380857031 is a deficient number, since it is larger than the sum of its proper divisors (165169).

380857031 is a wasteful number, since it uses less digits than its factorization.

380857031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165168.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 380857031 is about 19515.5586904398. The cubic root of 380857031 is about 724.8597626496.

The spelling of 380857031 in words is "three hundred eighty million, eight hundred fifty-seven thousand, thirty-one".