2421423 has 12 divisors (see below), whose sum is σ = 3538080. Its totient is φ = 1595616.

The previous prime is 2421421. The next prime is 2421439. The reversal of 2421423 is 3241242.

2421423 is a `hidden beast` number, since 242 + 1 + 423 = 666.

It is not a de Polignac number, because 2421423 - 2¹ = 2421421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2421396 and 2421405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421421) 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 11 ways as a sum of consecutive naturals, for example, 711 + ... + 2312.

It is an arithmetic number, because the mean of its divisors is an integer number (294840).

2^2421423 is an apocalyptic number.

2421423 is a deficient number, since it is larger than the sum of its proper divisors (1116657).

2421423 is a wasteful number, since it uses less digits than its factorization.

2421423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3118 (or 3115 counting only the distinct ones).

The product of its digits is 384, while the sum is 18.

The square root of 2421423 is about 1556.0922209175. The cubic root of 2421423 is about 134.2837789391.

Adding to 2421423 its reverse (3241242), we get a palindrome (5662665).

The spelling of 2421423 in words is "two million, four hundred twenty-one thousand, four hundred twenty-three".