2421469399 has 2 divisors, whose sum is σ = 2421469400. Its totient is φ = 2421469398.

The previous prime is 2421469397. The next prime is 2421469447. The reversal of 2421469399 is 9939641242.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2421469399 - 2¹ = 2421469397 is a prime.

Together with 2421469397, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2421469397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210734699 + 1210734700.

It is an arithmetic number, because the mean of its divisors is an integer number (1210734700).

Almost surely, 2^2421469399 is an apocalyptic number.

2421469399 is a deficient number, since it is larger than the sum of its proper divisors (1).

2421469399 is an equidigital number, since it uses as much as digits as its factorization.

2421469399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 839808, while the sum is 49.

The square root of 2421469399 is about 49208.4281297422. The cubic root of 2421469399 is about 1342.8463664320.

It can be divided in two parts, 242 and 1469399, that added together give a palindrome (1469641).

The spelling of 2421469399 in words is "two billion, four hundred twenty-one million, four hundred sixty-nine thousand, three hundred ninety-nine".