4222393994 has 24 divisors (see below), whose sum is σ = 7934391108. Its totient is φ = 1670397120.

The previous prime is 4222393913. The next prime is 4222393999. The reversal of 4222393994 is 4993932224.

It can be written as a sum of positive squares in 2 ways, for example, as 4200724969 + 21669025 = 64813^2 + 4655^2 .

It is a super-2 number, since 2×4222393994² = 35657222081134544072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4222393999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1655867 + ... + 1658414.

Almost surely, 2^4222393994 is an apocalyptic number.

4222393994 is a deficient number, since it is larger than the sum of its proper divisors (3711997114).

4222393994 is a wasteful number, since it uses less digits than its factorization.

4222393994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3314310 (or 3314303 counting only the distinct ones).

The product of its digits is 839808, while the sum is 47.

The square root of 4222393994 is about 64979.9507078914. The cubic root of 4222393994 is about 1616.2911130959.

The spelling of 4222393994 in words is "four billion, two hundred twenty-two million, three hundred ninety-three thousand, nine hundred ninety-four".