201838804 has 12 divisors (see below), whose sum is σ = 356715828. Its totient is φ = 99920000.

The previous prime is 201838783. The next prime is 201838837. The reversal of 201838804 is 408838102.

It can be written as a sum of positive squares in 2 ways, for example, as 154256400 + 47582404 = 12420^2 + 6898^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 201838804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249397 + ... + 250204.

It is an arithmetic number, because the mean of its divisors is an integer number (29726319).

Almost surely, 2^201838804 is an apocalyptic number.

It is an amenable number.

201838804 is a deficient number, since it is larger than the sum of its proper divisors (154877024).

201838804 is a wasteful number, since it uses less digits than its factorization.

201838804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499706 (or 499704 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 201838804 is about 14206.9984162736. The cubic root of 201838804 is about 586.5903147594.

The spelling of 201838804 in words is "two hundred one million, eight hundred thirty-eight thousand, eight hundred four".