394895516 has 24 divisors (see below), whose sum is σ = 733425840. Its totient is φ = 185399552.

The previous prime is 394895507. The next prime is 394895587. The reversal of 394895516 is 615598493.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 23570 + ... + 36678.

It is an arithmetic number, because the mean of its divisors is an integer number (30559410).

Almost surely, 2^394895516 is an apocalyptic number.

It is an amenable number.

394895516 is a deficient number, since it is larger than the sum of its proper divisors (338530324).

394895516 is a wasteful number, since it uses less digits than its factorization.

394895516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13573 (or 13571 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 50.

The square root of 394895516 is about 19871.9781602134. The cubic root of 394895516 is about 733.6586924489.

The spelling of 394895516 in words is "three hundred ninety-four million, eight hundred ninety-five thousand, five hundred sixteen".