394895916 has 36 divisors (see below), whose sum is σ = 999422424. Its totient is φ = 131472000.

The previous prime is 394895911. The next prime is 394895933. The reversal of 394895916 is 619598493.

394895916 is a `hidden beast` number, since 3 + 9 + 48 + 9 + 591 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (394895911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25491 + ... + 37941.

It is an arithmetic number, because the mean of its divisors is an integer number (27761734).

Almost surely, 2^394895916 is an apocalyptic number.

394895916 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

394895916 is an abundant number, since it is smaller than the sum of its proper divisors (604526508).

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

394895916 is a wasteful number, since it uses less digits than its factorization.

394895916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13342 (or 13337 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 54.

The square root of 394895916 is about 19871.9882246342. The cubic root of 394895916 is about 733.6589401628.

The spelling of 394895916 in words is "three hundred ninety-four million, eight hundred ninety-five thousand, nine hundred sixteen".