201322240 has 72 divisors (see below), whose sum is σ = 551144160. Its totient is φ = 69021696.

The previous prime is 201322223. The next prime is 201322301. The reversal of 201322240 is 42223102.

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 2275 + ... + 20194.

It is an arithmetic number, because the mean of its divisors is an integer number (7654780).

Almost surely, 2^201322240 is an apocalyptic number.

201322240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201322240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275572080).

201322240 is an abundant number, since it is smaller than the sum of its proper divisors (349821920).

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

201322240 is an equidigital number, since it uses as much as digits as its factorization.

201322240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22497 (or 22483 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 201322240 is about 14188.8068561102. The cubic root of 201322240 is about 586.0894690358.

Adding to 201322240 its reverse (42223102), we get a palindrome (243545342).

The spelling of 201322240 in words is "two hundred one million, three hundred twenty-two thousand, two hundred forty".