424404423 has 6 divisors (see below), whose sum is σ = 613028624. Its totient is φ = 282936276.

The previous prime is 424404419. The next prime is 424404433. The reversal of 424404423 is 324404424.

It is a happy number.

It is not a de Polignac number, because 424404423 - 2² = 424404419 is a prime.

It is a super-2 number, since 2×424404423² = 360238228523925858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424404433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23578015 + ... + 23578032.

Almost surely, 2^424404423 is an apocalyptic number.

424404423 is a deficient number, since it is larger than the sum of its proper divisors (188624201).

424404423 is a wasteful number, since it uses less digits than its factorization.

424404423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47156053 (or 47156050 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 27.

The square root of 424404423 is about 20601.0781999390. The cubic root of 424404423 is about 751.4959316011.

Adding to 424404423 its reverse (324404424), we get a palindrome (748808847).

Subtracting from 424404423 its reverse (324404424), we obtain a palindrome (99999999).

The spelling of 424404423 in words is "four hundred twenty-four million, four hundred four thousand, four hundred twenty-three".