2421430420 has 12 divisors (see below), whose sum is σ = 5085003924. Its totient is φ = 968572160.

The previous prime is 2421430397. The next prime is 2421430423. The reversal of 2421430420 is 240341242.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1597281156 + 824149264 = 39966^2 + 28708^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2421430391 and 2421430400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421430423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60535741 + ... + 60535780.

It is an arithmetic number, because the mean of its divisors is an integer number (423750327).

Almost surely, 2^2421430420 is an apocalyptic number.

2421430420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2421430420 is an abundant number, since it is smaller than the sum of its proper divisors (2663573504).

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

2421430420 is a wasteful number, since it uses less digits than its factorization.

2421430420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121071530 (or 121071528 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 2421430420 is about 49208.0320679460. The cubic root of 2421430420 is about 1342.8391610151.

Adding to 2421430420 its reverse (240341242), we get a palindrome (2661771662).

The spelling of 2421430420 in words is "two billion, four hundred twenty-one million, four hundred thirty thousand, four hundred twenty".