201442040 has 64 divisors (see below), whose sum is σ = 463536000. Its totient is φ = 78769152.

The previous prime is 201442037. The next prime is 201442051. The reversal of 201442040 is 40244102.

201442040 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 434849 + ... + 435311.

It is an arithmetic number, because the mean of its divisors is an integer number (7242750).

Almost surely, 2^201442040 is an apocalyptic number.

201442040 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 201442040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231768000).

201442040 is an abundant number, since it is smaller than the sum of its proper divisors (262093960).

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

201442040 is a wasteful number, since it uses less digits than its factorization.

201442040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696 (or 692 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 201442040 is about 14193.0278658220. The cubic root of 201442040 is about 586.2056999363.

Adding to 201442040 its reverse (40244102), we get a palindrome (241686142).

The spelling of 201442040 in words is "two hundred one million, four hundred forty-two thousand, forty".