201890196 has 36 divisors (see below), whose sum is σ = 516489792. Its totient is φ = 66484944.

The previous prime is 201890179. The next prime is 201890209. The reversal of 201890196 is 691098102.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 201890196.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30796 + ... + 36771.

Almost surely, 2^201890196 is an apocalyptic number.

It is an amenable number.

201890196 is an abundant number, since it is smaller than the sum of its proper divisors (314599596).

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

201890196 is a wasteful number, since it uses less digits than its factorization.

201890196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67660 (or 67655 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 201890196 is about 14208.8069872175. The cubic root of 201890196 is about 586.6400962197.

The spelling of 201890196 in words is "two hundred one million, eight hundred ninety thousand, one hundred ninety-six".