394861161 has 16 divisors (see below), whose sum is σ = 537933824. Its totient is φ = 257572224.

The previous prime is 394861153. The next prime is 394861163. The reversal of 394861161 is 161168493.

It is not a de Polignac number, because 394861161 - 2³ = 394861153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (394861163) 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, 20715 + ... + 34911.

It is an arithmetic number, because the mean of its divisors is an integer number (33620864).

Almost surely, 2^394861161 is an apocalyptic number.

It is an amenable number.

394861161 is a deficient number, since it is larger than the sum of its proper divisors (143072663).

394861161 is a wasteful number, since it uses less digits than its factorization.

394861161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14400.

The product of its digits is 31104, while the sum is 39.

The square root of 394861161 is about 19871.1137332561. The cubic root of 394861161 is about 733.6374162932.

The spelling of 394861161 in words is "three hundred ninety-four million, eight hundred sixty-one thousand, one hundred sixty-one".