2303405040 has 160 divisors (see below), whose sum is σ = 7433363520. Its totient is φ = 589324288.

The previous prime is 2303405029. The next prime is 2303405053. The reversal of 2303405040 is 405043032.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2303404998 and 2303405016.

It is a congruent number.

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, 1203124 + ... + 1205036.

It is an arithmetic number, because the mean of its divisors is an integer number (46458522).

Almost surely, 2^2303405040 is an apocalyptic number.

2303405040 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 2303405040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3716681760).

2303405040 is an abundant number, since it is smaller than the sum of its proper divisors (5129958480).

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

2303405040 is a wasteful number, since it uses less digits than its factorization.

2303405040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2131 (or 2125 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 2303405040 is about 47993.8020998545. The cubic root of 2303405040 is about 1320.6572025811.

Adding to 2303405040 its reverse (405043032), we get a palindrome (2708448072).

The spelling of 2303405040 in words is "two billion, three hundred three million, four hundred five thousand, forty".