2421068540 has 96 divisors (see below), whose sum is σ = 5937926400. Its totient is φ = 819832320.

The previous prime is 2421068537. The next prime is 2421068557. The reversal of 2421068540 is 458601242.

It is a junction number, because it is equal to n+sod(n) for n = 2421068497 and 2421068506.

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, 241712 + ... + 251528.

It is an arithmetic number, because the mean of its divisors is an integer number (61853400).

Almost surely, 2^2421068540 is an apocalyptic number.

2421068540 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 2421068540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2968963200).

2421068540 is an abundant number, since it is smaller than the sum of its proper divisors (3516857860).

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

2421068540 is a wasteful number, since it uses less digits than its factorization.

2421068540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9915 (or 9913 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 2421068540 is about 49204.3548885665. The cubic root of 2421068540 is about 1342.7722624247.

Adding to 2421068540 its reverse (458601242), we get a palindrome (2879669782).

The spelling of 2421068540 in words is "two billion, four hundred twenty-one million, sixty-eight thousand, five hundred forty".