204019806 has 16 divisors (see below), whose sum is σ = 408214800. Its totient is φ = 67977408.

The previous prime is 204019787. The next prime is 204019847. The reversal of 204019806 is 608910402.

204019806 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

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, 11610 + ... + 23298.

It is an arithmetic number, because the mean of its divisors is an integer number (25513425).

Almost surely, 2^204019806 is an apocalyptic number.

204019806 is an abundant number, since it is smaller than the sum of its proper divisors (204194994).

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

204019806 is a wasteful number, since it uses less digits than its factorization.

204019806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14603.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 204019806 is about 14283.5501889411. The cubic root of 204019806 is about 588.6955822604.

The spelling of 204019806 in words is "two hundred four million, nineteen thousand, eight hundred six".