2193998694 has 16 divisors (see below), whose sum is σ = 4506592368. Its totient is φ = 711567072.

The previous prime is 2193998687. The next prime is 2193998707. The reversal of 2193998694 is 4968993912.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4941217 + ... + 4941660.

It is an arithmetic number, because the mean of its divisors is an integer number (281662023).

Almost surely, 2^2193998694 is an apocalyptic number.

2193998694 is an abundant number, since it is smaller than the sum of its proper divisors (2312593674).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2193998694 is a wasteful number, since it uses less digits than its factorization.

2193998694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9882919.

The product of its digits is 7558272, while the sum is 60.

The square root of 2193998694 is about 46840.1397734891. The cubic root of 2193998694 is about 1299.4077566616.

The spelling of 2193998694 in words is "two billion, one hundred ninety-three million, nine hundred ninety-eight thousand, six hundred ninety-four".