394838222 has 4 divisors (see below), whose sum is σ = 592257336. Its totient is φ = 197419110.

The previous prime is 394838203. The next prime is 394838231. The reversal of 394838222 is 222838493.

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

It is a self number, because there is not a number n which added to its sum of digits gives 394838222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98709554 + ... + 98709557.

It is an arithmetic number, because the mean of its divisors is an integer number (148064334).

Almost surely, 2^394838222 is an apocalyptic number.

394838222 is a deficient number, since it is larger than the sum of its proper divisors (197419114).

394838222 is a wasteful number, since it uses less digits than its factorization.

394838222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197419113.

The product of its digits is 165888, while the sum is 41.

The square root of 394838222 is about 19870.5365302500. The cubic root of 394838222 is about 733.6232094139.

The spelling of 394838222 in words is "three hundred ninety-four million, eight hundred thirty-eight thousand, two hundred twenty-two".