394456922 has 4 divisors (see below), whose sum is σ = 591685386. Its totient is φ = 197228460.

The previous prime is 394456913. The next prime is 394456943. The reversal of 394456922 is 229654493.

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

It can be written as a sum of positive squares in only one way, i.e., 255712081 + 138744841 = 15991^2 + 11779^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98614229 + ... + 98614232.

Almost surely, 2^394456922 is an apocalyptic number.

394456922 is a deficient number, since it is larger than the sum of its proper divisors (197228464).

394456922 is a wasteful number, since it uses less digits than its factorization.

394456922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197228463.

The product of its digits is 466560, while the sum is 44.

The square root of 394456922 is about 19860.9396051647. The cubic root of 394456922 is about 733.3869771135.

The spelling of 394456922 in words is "three hundred ninety-four million, four hundred fifty-six thousand, nine hundred twenty-two".