2421351420 has 24 divisors (see below), whose sum is σ = 6779784144. Its totient is φ = 645693696.

The previous prime is 2421351419. The next prime is 2421351421. The reversal of 2421351420 is 241531242.

2421351420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2421351419) and next prime (2421351421).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421351421) 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, 20177869 + ... + 20177988.

It is an arithmetic number, because the mean of its divisors is an integer number (282491006).

Almost surely, 2^2421351420 is an apocalyptic number.

2421351420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2421351420 is an abundant number, since it is smaller than the sum of its proper divisors (4358432724).

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

2421351420 is a wasteful number, since it uses less digits than its factorization.

2421351420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40355869 (or 40355867 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 2421351420 is about 49207.2293469161. The cubic root of 2421351420 is about 1342.8245573265.

Adding to 2421351420 its reverse (241531242), we get a palindrome (2662882662).

The spelling of 2421351420 in words is "two billion, four hundred twenty-one million, three hundred fifty-one thousand, four hundred twenty".