394459922 has 8 divisors (see below), whose sum is σ = 591793356. Its totient is φ = 197195472.

The previous prime is 394459921. The next prime is 394459939. The reversal of 394459922 is 229954493.

It can be written as a sum of positive squares in 2 ways, for example, as 391287961 + 3171961 = 19781^2 + 1781^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (394459921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 848 + ... + 28100.

Almost surely, 2^394459922 is an apocalyptic number.

394459922 is a deficient number, since it is larger than the sum of its proper divisors (197333434).

394459922 is a wasteful number, since it uses less digits than its factorization.

394459922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34492.

The product of its digits is 699840, while the sum is 47.

The square root of 394459922 is about 19861.0151301488. The cubic root of 394459922 is about 733.3888363409.

The spelling of 394459922 in words is "three hundred ninety-four million, four hundred fifty-nine thousand, nine hundred twenty-two".