201838422 has 16 divisors (see below), whose sum is σ = 403914240. Its totient is φ = 67239912.

The previous prime is 201838421. The next prime is 201838451. The reversal of 201838422 is 224838102.

It is a self number, because there is not a number n which added to its sum of digits gives 201838422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201838421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2323 + ... + 20225.

It is an arithmetic number, because the mean of its divisors is an integer number (25244640).

Almost surely, 2^201838422 is an apocalyptic number.

201838422 is an abundant number, since it is smaller than the sum of its proper divisors (202075818).

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

201838422 is a wasteful number, since it uses less digits than its factorization.

201838422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19787.

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 201838422 is about 14206.9849721889. The cubic root of 201838422 is about 586.5899446990.

The spelling of 201838422 in words is "two hundred one million, eight hundred thirty-eight thousand, four hundred twenty-two".