394353704 has 8 divisors (see below), whose sum is σ = 739413210. Its totient is φ = 197176848.

The previous prime is 394353649. The next prime is 394353737. The reversal of 394353704 is 407353493.

It can be written as a sum of positive squares in only one way, i.e., 371332900 + 23020804 = 19270^2 + 4798^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24647099 + ... + 24647114.

Almost surely, 2^394353704 is an apocalyptic number.

It is an amenable number.

394353704 is a deficient number, since it is larger than the sum of its proper divisors (345059506).

394353704 is a wasteful number, since it uses less digits than its factorization.

394353704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49294219 (or 49294215 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 38.

The square root of 394353704 is about 19858.3409176094. The cubic root of 394353704 is about 733.3230027929.

The spelling of 394353704 in words is "three hundred ninety-four million, three hundred fifty-three thousand, seven hundred four".