2421240999 has 4 divisors (see below), whose sum is σ = 3228321336. Its totient is φ = 1614160664.

The previous prime is 2421240979. The next prime is 2421241007. The reversal of 2421240999 is 9990421242.

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 2421240999 - 2²³ = 2412852391 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2421240999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421240949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 403540164 + ... + 403540169.

It is an arithmetic number, because the mean of its divisors is an integer number (807080334).

Almost surely, 2^2421240999 is an apocalyptic number.

2421240999 is a deficient number, since it is larger than the sum of its proper divisors (807080337).

2421240999 is an equidigital number, since it uses as much as digits as its factorization.

2421240999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807080336.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 2421240999 is about 49206.1073343543. The cubic root of 2421240999 is about 1342.8041447196.

The spelling of 2421240999 in words is "two billion, four hundred twenty-one million, two hundred forty thousand, nine hundred ninety-nine".