393934704 has 40 divisors (see below), whose sum is σ = 1018394640. Its totient is φ = 131217408.

The previous prime is 393934703. The next prime is 393934721. The reversal of 393934704 is 407439393.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (393934703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107104 + ... + 110720.

It is an arithmetic number, because the mean of its divisors is an integer number (25459866).

Almost surely, 2^393934704 is an apocalyptic number.

It is an amenable number.

393934704 is an abundant number, since it is smaller than the sum of its proper divisors (624459936).

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

393934704 is a wasteful number, since it uses less digits than its factorization.

393934704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5897 (or 5891 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 42.

The square root of 393934704 is about 19847.7883906495. The cubic root of 393934704 is about 733.0631926942.

The spelling of 393934704 in words is "three hundred ninety-three million, nine hundred thirty-four thousand, seven hundred four".