2303343240 has 128 divisors (see below), whose sum is σ = 7742113920. Its totient is φ = 543283200.

The previous prime is 2303343227. The next prime is 2303343269. The reversal of 2303343240 is 423433032.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 2303343240.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25260 + ... + 72420.

It is an arithmetic number, because the mean of its divisors is an integer number (60485265).

Almost surely, 2^2303343240 is an apocalyptic number.

2303343240 is a gapful number since it is divisible by the number (20) 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 2303343240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3871056960).

2303343240 is an abundant number, since it is smaller than the sum of its proper divisors (5438770680).

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

2303343240 is a wasteful number, since it uses less digits than its factorization.

2303343240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47223 (or 47219 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 24.

The square root of 2303343240 is about 47993.1582624024. The cubic root of 2303343240 is about 1320.6453914661.

Adding to 2303343240 its reverse (423433032), we get a palindrome (2726776272).

It can be divided in two parts, 2303 and 343240, that added together give a palindrome (345543).

The spelling of 2303343240 in words is "two billion, three hundred three million, three hundred forty-three thousand, two hundred forty".