199902881 has 8 divisors (see below), whose sum is σ = 212471424. Its totient is φ = 187424320.

The previous prime is 199902869. The next prime is 199902907. The reversal of 199902881 is 188209991.

199902881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 199902881 - 2¹⁴ = 199886497 is a prime.

It is a super-2 number, since 2×199902881² = 79922323664200322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (199901881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17885 + ... + 26826.

It is an arithmetic number, because the mean of its divisors is an integer number (26558928).

Almost surely, 2^199902881 is an apocalyptic number.

It is an amenable number.

199902881 is a deficient number, since it is larger than the sum of its proper divisors (12568543).

199902881 is a wasteful number, since it uses less digits than its factorization.

199902881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44991.

The product of its (nonzero) digits is 93312, while the sum is 47.

The square root of 199902881 is about 14138.7015316117. The cubic root of 199902881 is about 584.7088730902.

The spelling of 199902881 in words is "one hundred ninety-nine million, nine hundred two thousand, eight hundred eighty-one".