2421420400 has 60 divisors (see below), whose sum is σ = 6648536272. Its totient is φ = 830200320.

The previous prime is 2421420367. The next prime is 2421420403. The reversal of 2421420400 is 40241242.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421420403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 429597 + ... + 435196.

Almost surely, 2^2421420400 is an apocalyptic number.

2421420400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2421420400 is an abundant number, since it is smaller than the sum of its proper divisors (4227115872).

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

2421420400 is a wasteful number, since it uses less digits than its factorization.

2421420400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864818 (or 864807 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 2421420400 is about 49207.9302551936. The cubic root of 2421420400 is about 1342.8373087674.

Adding to 2421420400 its reverse (40241242), we get a palindrome (2461661642).

The spelling of 2421420400 in words is "two billion, four hundred twenty-one million, four hundred twenty thousand, four hundred".