4311040340 has 72 divisors (see below), whose sum is σ = 9585838080. Its totient is φ = 1628346816.

The previous prime is 4311040339. The next prime is 4311040343. The reversal of 4311040340 is 430401134.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4311040343) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2764481 + ... + 2766039.

It is an arithmetic number, because the mean of its divisors is an integer number (133136640).

Almost surely, 2^4311040340 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 4311040340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4792919040).

4311040340 is an abundant number, since it is smaller than the sum of its proper divisors (5274797740).

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

4311040340 is a wasteful number, since it uses less digits than its factorization.

4311040340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1989 (or 1968 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 4311040340 is about 65658.5130809402. The cubic root of 4311040340 is about 1627.5238527481.

Adding to 4311040340 its reverse (430401134), we get a palindrome (4741441474).

The spelling of 4311040340 in words is "four billion, three hundred eleven million, forty thousand, three hundred forty".