2421423005 has 16 divisors (see below), whose sum is σ = 3087151920. Its totient is φ = 1819786752.

The previous prime is 2421422981. The next prime is 2421423007. The reversal of 2421423005 is 5003241242.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 97990201 + 2323432804 = 9899^2 + 48202^2 .

It is a cyclic number.

It is not a de Polignac number, because 2421423005 - 2⁸ = 2421422749 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421423007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220304 + ... + 231033.

It is an arithmetic number, because the mean of its divisors is an integer number (192946995).

Almost surely, 2^2421423005 is an apocalyptic number.

It is an amenable number.

2421423005 is a deficient number, since it is larger than the sum of its proper divisors (665728915).

2421423005 is a wasteful number, since it uses less digits than its factorization.

2421423005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451408.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 2421423005 is about 49207.9567244973. The cubic root of 2421423005 is about 1342.8377903153.

Adding to 2421423005 its reverse (5003241242), we get a palindrome (7424664247).

The spelling of 2421423005 in words is "two billion, four hundred twenty-one million, four hundred twenty-three thousand, five".