2402243440 has 80 divisors (see below), whose sum is σ = 5706125856. Its totient is φ = 940262400.

The previous prime is 2402243407. The next prime is 2402243471. The reversal of 2402243440 is 443422042.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1028514 + ... + 1030846.

Almost surely, 2^2402243440 is an apocalyptic number.

2402243440 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 2402243440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2853062928).

2402243440 is an abundant number, since it is smaller than the sum of its proper divisors (3303882416).

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

2402243440 is a wasteful number, since it uses less digits than its factorization.

2402243440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2618 (or 2612 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 25.

The square root of 2402243440 is about 49012.6865209407. The cubic root of 2402243440 is about 1339.2829459827.

Adding to 2402243440 its reverse (443422042), we get a palindrome (2845665482).

The spelling of 2402243440 in words is "two billion, four hundred two million, two hundred forty-three thousand, four hundred forty".