199899460 has 48 divisors (see below), whose sum is σ = 432875520. Its totient is φ = 77500800.

The previous prime is 199899449. The next prime is 199899461. The reversal of 199899460 is 64998991.

199899460 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (199899461) 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, 101485 + ... + 103435.

It is an arithmetic number, because the mean of its divisors is an integer number (9018240).

Almost surely, 2^199899460 is an apocalyptic number.

199899460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199899460 is an abundant number, since it is smaller than the sum of its proper divisors (232976060).

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

199899460 is a wasteful number, since it uses less digits than its factorization.

199899460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2116 (or 2114 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 55.

The square root of 199899460 is about 14138.5805511020. The cubic root of 199899460 is about 584.7055376364.

The spelling of 199899460 in words is "one hundred ninety-nine million, eight hundred ninety-nine thousand, four hundred sixty".