2303305040 has 40 divisors (see below), whose sum is σ = 5422986240. Its totient is φ = 909657216.

The previous prime is 2303305033. The next prime is 2303305049. The reversal of 2303305040 is 405033032.

It is a tau number, because it is divible by the number of its divisors (40).

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 (2303305049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175904 + ... + 188543.

It is an arithmetic number, because the mean of its divisors is an integer number (135574656).

Almost surely, 2^2303305040 is an apocalyptic number.

2303305040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2303305040 is an abundant number, since it is smaller than the sum of its proper divisors (3119681200).

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

2303305040 is a wasteful number, since it uses less digits than its factorization.

2303305040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364539 (or 364533 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 20.

The square root of 2303305040 is about 47992.7602873600. The cubic root of 2303305040 is about 1320.6380906390.

Adding to 2303305040 its reverse (405033032), we get a palindrome (2708338072).

The spelling of 2303305040 in words is "two billion, three hundred three million, three hundred five thousand, forty".