2193343889 has 12 divisors (see below), whose sum is σ = 2432998260. Its totient is φ = 1975644000.

The previous prime is 2193343883. The next prime is 2193343931. The reversal of 2193343889 is 9883433912.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 771450625 + 1421893264 = 27775^2 + 37708^2 .

It is not a de Polignac number, because 2193343889 - 2¹² = 2193339793 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2193343883) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69962 + ... + 96339.

It is an arithmetic number, because the mean of its divisors is an integer number (202749855).

Almost surely, 2^2193343889 is an apocalyptic number.

It is an amenable number.

2193343889 is a deficient number, since it is larger than the sum of its proper divisors (239654371).

2193343889 is a wasteful number, since it uses less digits than its factorization.

2193343889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166432 (or 166421 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 50.

The square root of 2193343889 is about 46833.1494670175. The cubic root of 2193343889 is about 1299.2784731818.

The spelling of 2193343889 in words is "two billion, one hundred ninety-three million, three hundred forty-three thousand, eight hundred eighty-nine".