201444240 has 40 divisors (see below), whose sum is σ = 624477888. Its totient is φ = 53718400.

The previous prime is 201444227. The next prime is 201444247. The reversal of 201444240 is 42444102.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (201444247) 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, 419436 + ... + 419915.

Almost surely, 2^201444240 is an apocalyptic number.

201444240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201444240 is an abundant number, since it is smaller than the sum of its proper divisors (423033648).

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

201444240 is a wasteful number, since it uses less digits than its factorization.

201444240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839367 (or 839361 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 201444240 is about 14193.1053684527. The cubic root of 201444240 is about 586.2078339626.

Adding to 201444240 its reverse (42444102), we get a palindrome (243888342).

The spelling of 201444240 in words is "two hundred one million, four hundred forty-four thousand, two hundred forty".