380644161 has 16 divisors (see below), whose sum is σ = 539382528. Its totient is φ = 237945600.

The previous prime is 380644153. The next prime is 380644183. The reversal of 380644161 is 161446083.

It is not a de Polignac number, because 380644161 - 2³ = 380644153 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (380644151) 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, 51 + ... + 27591.

It is an arithmetic number, because the mean of its divisors is an integer number (33711408).

Almost surely, 2^380644161 is an apocalyptic number.

It is an amenable number.

380644161 is a deficient number, since it is larger than the sum of its proper divisors (158738367).

380644161 is a wasteful number, since it uses less digits than its factorization.

380644161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27832.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 380644161 is about 19510.1040745558. The cubic root of 380644161 is about 724.7246903946.

The spelling of 380644161 in words is "three hundred eighty million, six hundred forty-four thousand, one hundred sixty-one".