2194904868 has 48 divisors (see below), whose sum is σ = 5568990336. Its totient is φ = 668793600.

The previous prime is 2194904839. The next prime is 2194904879. The reversal of 2194904868 is 8684094912.

It is a self number, because there is not a number n which added to its sum of digits gives 2194904868.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52233 + ... + 84368.

It is an arithmetic number, because the mean of its divisors is an integer number (116020632).

Almost surely, 2^2194904868 is an apocalyptic number.

It is an amenable number.

2194904868 is an abundant number, since it is smaller than the sum of its proper divisors (3374085468).

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

2194904868 is a wasteful number, since it uses less digits than its factorization.

2194904868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136724 (or 136722 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 51.

The square root of 2194904868 is about 46849.8118245954. The cubic root of 2194904868 is about 1299.5866275446.

The spelling of 2194904868 in words is "two billion, one hundred ninety-four million, nine hundred four thousand, eight hundred sixty-eight".