380487831 has 16 divisors (see below), whose sum is σ = 536460288. Its totient is φ = 239486400.

The previous prime is 380487823. The next prime is 380487869. The reversal of 380487831 is 138784083.

It is not a de Polignac number, because 380487831 - 2³ = 380487823 is a prime.

It is a super-2 number, since 2×380487831² = 289541979078169122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380487881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46081 + ... + 53706.

It is an arithmetic number, because the mean of its divisors is an integer number (33528768).

Almost surely, 2^380487831 is an apocalyptic number.

380487831 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

380487831 is a deficient number, since it is larger than the sum of its proper divisors (155972457).

380487831 is a wasteful number, since it uses less digits than its factorization.

380487831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99862.

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 380487831 is about 19506.0972775181. The cubic root of 380487831 is about 724.6254623524.

The spelling of 380487831 in words is "three hundred eighty million, four hundred eighty-seven thousand, eight hundred thirty-one".