380181381 has 16 divisors (see below), whose sum is σ = 513171456. Its totient is φ = 250338816.

The previous prime is 380181371. The next prime is 380181443. The reversal of 380181381 is 183181083.

It is not a de Polignac number, because 380181381 - 2¹¹ = 380179333 is a prime.

It is a super-2 number, since 2×380181381² = 289075764918134322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380181301) 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, 104316 + ... + 107898.

It is an arithmetic number, because the mean of its divisors is an integer number (32073216).

Almost surely, 2^380181381 is an apocalyptic number.

It is an amenable number.

380181381 is a deficient number, since it is larger than the sum of its proper divisors (132990075).

380181381 is a wasteful number, since it uses less digits than its factorization.

380181381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4012.

The product of its (nonzero) digits is 4608, while the sum is 33.

The square root of 380181381 is about 19498.2404590773. The cubic root of 380181381 is about 724.4308690797.

The spelling of 380181381 in words is "three hundred eighty million, one hundred eighty-one thousand, three hundred eighty-one".