4234313440 has 144 divisors (see below), whose sum is σ = 11673622800. Its totient is φ = 1447176192.

The previous prime is 4234313431. The next prime is 4234313441. The reversal of 4234313440 is 443134324.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 4234313399 and 4234313408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4234313441) 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, 3284316 + ... + 3285604.

It is an arithmetic number, because the mean of its divisors is an integer number (81066825).

Almost surely, 2^4234313440 is an apocalyptic number.

4234313440 is a gapful number since it is divisible by the number (40) 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 4234313440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5836811400).

4234313440 is an abundant number, since it is smaller than the sum of its proper divisors (7439309360).

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

4234313440 is a wasteful number, since it uses less digits than its factorization.

4234313440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1737 (or 1722 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

The square root of 4234313440 is about 65071.6024084239. The cubic root of 4234313440 is about 1617.8105666705.

Adding to 4234313440 its reverse (443134324), we get a palindrome (4677447764).

The spelling of 4234313440 in words is "four billion, two hundred thirty-four million, three hundred thirteen thousand, four hundred forty".