2421404331 has 4 divisors (see below), whose sum is σ = 3228539112. Its totient is φ = 1614269552.

The previous prime is 2421404303. The next prime is 2421404383. The reversal of 2421404331 is 1334041242.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2421404331 - 2⁹ = 2421403819 is a prime.

It is a super-4 number, since 4×2421404331⁴ (a number of 39 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (2421404731) 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, 403567386 + ... + 403567391.

It is an arithmetic number, because the mean of its divisors is an integer number (807134778).

Almost surely, 2^2421404331 is an apocalyptic number.

2421404331 is a deficient number, since it is larger than the sum of its proper divisors (807134781).

2421404331 is an equidigital number, since it uses as much as digits as its factorization.

2421404331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807134780.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 2421404331 is about 49207.7669783948. The cubic root of 2421404331 is about 1342.8343383207.

Adding to 2421404331 its reverse (1334041242), we get a palindrome (3755445573).

The spelling of 2421404331 in words is "two billion, four hundred twenty-one million, four hundred four thousand, three hundred thirty-one".