394075940 has 24 divisors (see below), whose sum is σ = 835598400. Its totient is φ = 156099168.

The previous prime is 394075931. The next prime is 394075987. The reversal of 394075940 is 49570493.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93590 + ... + 97709.

It is an arithmetic number, because the mean of its divisors is an integer number (34816600).

Almost surely, 2^394075940 is an apocalyptic number.

It is an amenable number.

394075940 is an abundant number, since it is smaller than the sum of its proper divisors (441522460).

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

394075940 is a wasteful number, since it uses less digits than its factorization.

394075940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191411 (or 191409 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 394075940 is about 19851.3460500793. The cubic root of 394075940 is about 733.1507897343.

The spelling of 394075940 in words is "three hundred ninety-four million, seventy-five thousand, nine hundred forty".