424424423 has 4 divisors (see below), whose sum is σ = 424729200. Its totient is φ = 424119648.

The previous prime is 424424389. The next prime is 424424443. The reversal of 424424423 is 324424424.

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 424424423 - 2¹² = 424420327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424424443) 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, 150290 + ... + 153087.

It is an arithmetic number, because the mean of its divisors is an integer number (106182300).

Almost surely, 2^424424423 is an apocalyptic number.

424424423 is a deficient number, since it is larger than the sum of its proper divisors (304777).

424424423 is a wasteful number, since it uses less digits than its factorization.

424424423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304776.

The product of its digits is 24576, while the sum is 29.

The square root of 424424423 is about 20601.5636057072. The cubic root of 424424423 is about 751.5077361298.

Adding to 424424423 its reverse (324424424), we get a palindrome (748848847).

Subtracting from 424424423 its reverse (324424424), we obtain a palindrome (99999999).

The spelling of 424424423 in words is "four hundred twenty-four million, four hundred twenty-four thousand, four hundred twenty-three".