199492660 has 24 divisors (see below), whose sum is σ = 419924736. Its totient is φ = 79608480.

The previous prime is 199492651. The next prime is 199492669. The reversal of 199492660 is 66294991.

It is an interprime number because it is at equal distance from previous prime (199492651) and next prime (199492669).

It is a self number, because there is not a number n which added to its sum of digits gives 199492660.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199492669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2952 + ... + 20191.

It is an arithmetic number, because the mean of its divisors is an integer number (17496864).

Almost surely, 2^199492660 is an apocalyptic number.

199492660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199492660 is an abundant number, since it is smaller than the sum of its proper divisors (220432076).

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

199492660 is a wasteful number, since it uses less digits than its factorization.

199492660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23583 (or 23581 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 199492660 is about 14124.1870562521. The cubic root of 199492660 is about 584.3086385413.

The spelling of 199492660 in words is "one hundred ninety-nine million, four hundred ninety-two thousand, six hundred sixty".