11724237240 has 128 divisors (see below), whose sum is σ = 36039548160. Its totient is φ = 3049611264.

The previous prime is 11724237233. The next prime is 11724237241. The reversal of 11724237240 is 4273242711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11724237241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6278787 + ... + 6280653.

It is an arithmetic number, because the mean of its divisors is an integer number (281558970).

Almost surely, 2^11724237240 is an apocalyptic number.

11724237240 is a gapful number since it is divisible by the number (10) 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 11724237240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18019774080).

11724237240 is an abundant number, since it is smaller than the sum of its proper divisors (24315310920).

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

11724237240 is a wasteful number, since it uses less digits than its factorization.

11724237240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3141 (or 3137 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 33.

Adding to 11724237240 its reverse (4273242711), we get a palindrome (15997479951).

The spelling of 11724237240 in words is "eleven billion, seven hundred twenty-four million, two hundred thirty-seven thousand, two hundred forty".