199194660 has 96 divisors (see below), whose sum is σ = 708261120. Its totient is φ = 45529344.

The previous prime is 199194659. The next prime is 199194683. The reversal of 199194660 is 66491991.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22569 + ... + 30128.

It is an arithmetic number, because the mean of its divisors is an integer number (7377720).

Almost surely, 2^199194660 is an apocalyptic number.

199194660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199194660 is an abundant number, since it is smaller than the sum of its proper divisors (509066460).

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

199194660 is a wasteful number, since it uses less digits than its factorization.

199194660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52722 (or 52714 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 45.

The square root of 199194660 is about 14113.6338339919. The cubic root of 199194660 is about 584.0175488878.

The spelling of 199194660 in words is "one hundred ninety-nine million, one hundred ninety-four thousand, six hundred sixty".