2303215440 has 40 divisors (see below), whose sum is σ = 7139968608. Its totient is φ = 614190720.

The previous prime is 2303215427. The next prime is 2303215441. The reversal of 2303215440 is 445123032.

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 (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2303215440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2303215441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4798126 + ... + 4798605.

Almost surely, 2^2303215440 is an apocalyptic number.

2303215440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2303215440 is an abundant number, since it is smaller than the sum of its proper divisors (4836753168).

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

2303215440 is a wasteful number, since it uses less digits than its factorization.

2303215440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9596747 (or 9596741 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 2303215440 is about 47991.8268041549. The cubic root of 2303215440 is about 1320.6209658689.

Adding to 2303215440 its reverse (445123032), we get a palindrome (2748338472).

The spelling of 2303215440 in words is "two billion, three hundred three million, two hundred fifteen thousand, four hundred forty".