394710040 has 32 divisors (see below), whose sum is σ = 888868080. Its totient is φ = 157747072.

The previous prime is 394710023. The next prime is 394710049. The reversal of 394710040 is 40017493.

It is a junction number, because it is equal to n+sod(n) for n = 394709990 and 394710008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394710049) 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 7 ways as a sum of consecutive naturals, for example, 51327 + ... + 58513.

Almost surely, 2^394710040 is an apocalyptic number.

It is an amenable number.

394710040 is an abundant number, since it is smaller than the sum of its proper divisors (494158040).

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

394710040 is a wasteful number, since it uses less digits than its factorization.

394710040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8571 (or 8567 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 394710040 is about 19867.3108396683. The cubic root of 394710040 is about 733.5438119434.

The spelling of 394710040 in words is "three hundred ninety-four million, seven hundred ten thousand, forty".