380840185 has 16 divisors (see below), whose sum is σ = 510717312. Its totient is φ = 270217600.

The previous prime is 380840183. The next prime is 380840189. The reversal of 380840185 is 581048083.

It is not a de Polignac number, because 380840185 - 2¹ = 380840183 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (380840183) 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, 82189 + ... + 86698.

It is an arithmetic number, because the mean of its divisors is an integer number (31919832).

Almost surely, 2^380840185 is an apocalyptic number.

It is an amenable number.

380840185 is a deficient number, since it is larger than the sum of its proper divisors (129877127).

380840185 is a wasteful number, since it uses less digits than its factorization.

380840185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168944.

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 380840185 is about 19515.1270813182. The cubic root of 380840185 is about 724.8490752029.

The spelling of 380840185 in words is "three hundred eighty million, eight hundred forty thousand, one hundred eighty-five".