2809941198 has 32 divisors (see below), whose sum is σ = 6015945600. Its totient is φ = 872307936.

The previous prime is 2809941161. The next prime is 2809941269. The reversal of 2809941198 is 8911499082.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2809941198.

It is a congruent number.

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, 202161 + ... + 215612.

It is an arithmetic number, because the mean of its divisors is an integer number (187998300).

Almost surely, 2^2809941198 is an apocalyptic number.

2809941198 is an abundant number, since it is smaller than the sum of its proper divisors (3206004402).

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

2809941198 is a wasteful number, since it uses less digits than its factorization.

2809941198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417856.

The product of its (nonzero) digits is 373248, while the sum is 51.

The square root of 2809941198 is about 53008.8784827598. The cubic root of 2809941198 is about 1411.1258379024.

The spelling of 2809941198 in words is "two billion, eight hundred nine million, nine hundred forty-one thousand, one hundred ninety-eight".