199540602 has 12 divisors (see below), whose sum is σ = 432338010. Its totient is φ = 66513528.

The previous prime is 199540573. The next prime is 199540613. The reversal of 199540602 is 206045991.

199540602 is a `hidden beast` number, since 1 + 9 + 9 + 5 + 40 + 602 = 666.

It can be written as a sum of positive squares in only one way, i.e., 191020041 + 8520561 = 13821^2 + 2919^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5542777 + ... + 5542812.

Almost surely, 2^199540602 is an apocalyptic number.

199540602 is an abundant number, since it is smaller than the sum of its proper divisors (232797408).

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

199540602 is a wasteful number, since it uses less digits than its factorization.

199540602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11085597 (or 11085594 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 199540602 is about 14125.8841139236. The cubic root of 199540602 is about 584.3554417353.

The spelling of 199540602 in words is "one hundred ninety-nine million, five hundred forty thousand, six hundred two".