201340233240 has 64 divisors (see below), whose sum is σ = 604210082400. Its totient is φ = 53673894912.

The previous prime is 201340233229. The next prime is 201340233247. The reversal of 201340233240 is 42332043102.

It is a super-2 number, since 2×201340233240² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 201340233240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201340233247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123654 + ... + 646506.

Almost surely, 2^201340233240 is an apocalyptic number.

201340233240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201340233240 is an abundant number, since it is smaller than the sum of its proper divisors (402869849160).

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

201340233240 is a wasteful number, since it uses less digits than its factorization.

201340233240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526076 (or 526072 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 201340233240 its reverse (42332043102), we get a palindrome (243672276342).

The spelling of 201340233240 in words is "two hundred one billion, three hundred forty million, two hundred thirty-three thousand, two hundred forty".