4031340320 has 96 divisors (see below), whose sum is σ = 11033947008. Its totient is φ = 1363212288.

The previous prime is 4031340319. The next prime is 4031340323. The reversal of 4031340320 is 230431304.

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

It is a junction number, because it is equal to n+sod(n) for n = 4031340292 and 4031340301.

It is not an unprimeable number, because it can be changed into a prime (4031340323) 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, 57107 + ... + 106413.

It is an arithmetic number, because the mean of its divisors is an integer number (114936948).

Almost surely, 2^4031340320 is an apocalyptic number.

4031340320 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 4031340320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5516973504).

4031340320 is an abundant number, since it is smaller than the sum of its proper divisors (7002606688).

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

4031340320 is a wasteful number, since it uses less digits than its factorization.

4031340320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49402 (or 49394 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 4031340320 is about 63492.8367613229. The cubic root of 4031340320 is about 1591.5360760281.

Adding to 4031340320 its reverse (230431304), we get a palindrome (4261771624).

The spelling of 4031340320 in words is "four billion, thirty-one million, three hundred forty thousand, three hundred twenty".