19422246394 has 16 divisors (see below), whose sum is σ = 30975106536. Its totient is φ = 9101952000.

The previous prime is 19422246391. The next prime is 19422246421. The reversal of 19422246394 is 49364222491.

It can be written as a sum of positive squares in 4 ways, for example, as 19225209025 + 197037369 = 138655^2 + 14037^2 .

It is not an unprimeable number, because it can be changed into a prime (19422246391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1176957 + ... + 1193344.

Almost surely, 2^19422246394 is an apocalyptic number.

19422246394 is a deficient number, since it is larger than the sum of its proper divisors (11552860142).

19422246394 is a wasteful number, since it uses less digits than its factorization.

19422246394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2370561.

The product of its digits is 746496, while the sum is 46.

The spelling of 19422246394 in words is "nineteen billion, four hundred twenty-two million, two hundred forty-six thousand, three hundred ninety-four".