394086168 has 128 divisors (see below), whose sum is σ = 1264435200. Its totient is φ = 111393792.

The previous prime is 394086107. The next prime is 394086313. The reversal of 394086168 is 861680493.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 145321 + ... + 148007.

It is an arithmetic number, because the mean of its divisors is an integer number (9878400).

Almost surely, 2^394086168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 394086168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (632217600).

394086168 is an abundant number, since it is smaller than the sum of its proper divisors (870349032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

394086168 is a wasteful number, since it uses less digits than its factorization.

394086168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2806 (or 2796 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 394086168 is about 19851.6036631805. The cubic root of 394086168 is about 733.1571325062.

The spelling of 394086168 in words is "three hundred ninety-four million, eighty-six thousand, one hundred sixty-eight".