2001800199 has 32 divisors (see below), whose sum is σ = 3165364224. Its totient is φ = 1101512160.

The previous prime is 2001800179. The next prime is 2001800209. The reversal of 2001800199 is 9910081002.

It is not a de Polignac number, because 2001800199 - 2²⁴ = 1985022983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001800149) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48502 + ... + 79724.

It is an arithmetic number, because the mean of its divisors is an integer number (98917632).

Almost surely, 2^2001800199 is an apocalyptic number.

2001800199 is a deficient number, since it is larger than the sum of its proper divisors (1163564025).

2001800199 is a wasteful number, since it uses less digits than its factorization.

2001800199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31347.

The product of its (nonzero) digits is 1296, while the sum is 30.

The square root of 2001800199 is about 44741.4818596792. The cubic root of 2001800199 is about 1260.2989546359.

The spelling of 2001800199 in words is "two billion, one million, eight hundred thousand, one hundred ninety-nine".