394675222 has 4 divisors (see below), whose sum is σ = 592012836. Its totient is φ = 197337610.

The previous prime is 394675219. The next prime is 394675261. The reversal of 394675222 is 222576493.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98668804 + ... + 98668807.

It is an arithmetic number, because the mean of its divisors is an integer number (148003209).

Almost surely, 2^394675222 is an apocalyptic number.

394675222 is a deficient number, since it is larger than the sum of its proper divisors (197337614).

394675222 is a wasteful number, since it uses less digits than its factorization.

394675222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197337613.

The product of its digits is 181440, while the sum is 40.

The square root of 394675222 is about 19866.4345568096. The cubic root of 394675222 is about 733.5222422873.

The spelling of 394675222 in words is "three hundred ninety-four million, six hundred seventy-five thousand, two hundred twenty-two".