3111244240 has 80 divisors (see below), whose sum is σ = 7799500800. Its totient is φ = 1147378176.

The previous prime is 3111244237. The next prime is 3111244249. The reversal of 3111244240 is 424421113.

It is a happy number.

3111244240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3111244249) 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, 1328991 + ... + 1331329.

It is an arithmetic number, because the mean of its divisors is an integer number (97493760).

Almost surely, 2^3111244240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3111244240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3899750400).

3111244240 is an abundant number, since it is smaller than the sum of its proper divisors (4688256560).

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

3111244240 is a wasteful number, since it uses less digits than its factorization.

3111244240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3644 (or 3638 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 3111244240 is about 55778.5284854307. The cubic root of 3111244240 is about 1459.8605358746.

Adding to 3111244240 its reverse (424421113), we get a palindrome (3535665353).

The spelling of 3111244240 in words is "three billion, one hundred eleven million, two hundred forty-four thousand, two hundred forty".