394275398 has 32 divisors (see below), whose sum is σ = 656232192. Its totient is φ = 176168800.

The previous prime is 394275397. The next prime is 394275443. The reversal of 394275398 is 893572493.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394275397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 479828 + ... + 480648.

It is an arithmetic number, because the mean of its divisors is an integer number (20507256).

Almost surely, 2^394275398 is an apocalyptic number.

394275398 is a deficient number, since it is larger than the sum of its proper divisors (261956794).

394275398 is a wasteful number, since it uses less digits than its factorization.

394275398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1180.

The product of its digits is 1632960, while the sum is 50.

The square root of 394275398 is about 19856.3692048672. The cubic root of 394275398 is about 733.2744614355.

The spelling of 394275398 in words is "three hundred ninety-four million, two hundred seventy-five thousand, three hundred ninety-eight".