199741899 has 16 divisors (see below), whose sum is σ = 307791360. Its totient is φ = 112854720.

The previous prime is 199741859. The next prime is 199741931. The reversal of 199741899 is 998147991.

It is not a de Polignac number, because 199741899 - 2⁸ = 199741643 is a prime.

It is a super-2 number, since 2×199741899² = 79793652432252402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (199741819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51567 + ... + 55304.

It is an arithmetic number, because the mean of its divisors is an integer number (19236960).

Almost surely, 2^199741899 is an apocalyptic number.

199741899 is a deficient number, since it is larger than the sum of its proper divisors (108049461).

199741899 is a wasteful number, since it uses less digits than its factorization.

199741899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106970.

The product of its digits is 1469664, while the sum is 57.

The square root of 199741899 is about 14133.0074294186. The cubic root of 199741899 is about 584.5518753827.

The spelling of 199741899 in words is "one hundred ninety-nine million, seven hundred forty-one thousand, eight hundred ninety-nine".