394368903 has 12 divisors (see below), whose sum is σ = 585040248. Its totient is φ = 255806640.

The previous prime is 394368899. The next prime is 394368911. The reversal of 394368903 is 309863493.

It is not a de Polignac number, because 394368903 - 2² = 394368899 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394368913) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 591813 + ... + 592478.

It is an arithmetic number, because the mean of its divisors is an integer number (48753354).

Almost surely, 2^394368903 is an apocalyptic number.

394368903 is a deficient number, since it is larger than the sum of its proper divisors (190671345).

394368903 is a wasteful number, since it uses less digits than its factorization.

394368903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184334 (or 1184331 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 45.

The square root of 394368903 is about 19858.7235994663. The cubic root of 394368903 is about 733.3324238051.

The spelling of 394368903 in words is "three hundred ninety-four million, three hundred sixty-eight thousand, nine hundred three".