201234240 has 112 divisors (see below), whose sum is σ = 709940160. Its totient is φ = 53660160.

The previous prime is 201234239. The next prime is 201234259. The reversal of 201234240 is 42432102.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3006 + ... + 20285.

Almost surely, 2^201234240 is an apocalyptic number.

201234240 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 201234240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (354970080).

201234240 is an abundant number, since it is smaller than the sum of its proper divisors (508705920).

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

201234240 is a wasteful number, since it uses less digits than its factorization.

201234240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23317 (or 23301 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 201234240 is about 14185.7054812230. The cubic root of 201234240 is about 586.0040613665.

Adding to 201234240 its reverse (42432102), we get a palindrome (243666342).

The spelling of 201234240 in words is "two hundred one million, two hundred thirty-four thousand, two hundred forty".