2456243240 has 128 divisors (see below), whose sum is σ = 6411312000. Its totient is φ = 837504000.

The previous prime is 2456243239. The next prime is 2456243267. The reversal of 2456243240 is 423426542.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2456243197 and 2456243206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 842906 + ... + 845814.

It is an arithmetic number, because the mean of its divisors is an integer number (50088375).

Almost surely, 2^2456243240 is an apocalyptic number.

2456243240 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 2456243240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3205656000).

2456243240 is an abundant number, since it is smaller than the sum of its proper divisors (3955068760).

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

2456243240 is a wasteful number, since it uses less digits than its factorization.

2456243240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3051 (or 3047 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 32.

The square root of 2456243240 is about 49560.5008045722. The cubic root of 2456243240 is about 1349.2438820282.

Adding to 2456243240 its reverse (423426542), we get a palindrome (2879669782).

The spelling of 2456243240 in words is "two billion, four hundred fifty-six million, two hundred forty-three thousand, two hundred forty".