196642586 has 16 divisors (see below), whose sum is σ = 343982400. Its totient is φ = 84275100.

The previous prime is 196642573. The next prime is 196642597. The reversal of 196642586 is 685246691.

196642586 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 196642586.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142640 + ... + 144011.

It is an arithmetic number, because the mean of its divisors is an integer number (21498900).

Almost surely, 2^196642586 is an apocalyptic number.

196642586 is a deficient number, since it is larger than the sum of its proper divisors (147339814).

196642586 is an equidigital number, since it uses as much as digits as its factorization.

196642586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286674 (or 286660 counting only the distinct ones).

The product of its digits is 622080, while the sum is 47.

The square root of 196642586 is about 14022.9307207873. The cubic root of 196642586 is about 581.5126843504.

The spelling of 196642586 in words is "one hundred ninety-six million, six hundred forty-two thousand, five hundred eighty-six".