404210423 has 4 divisors (see below), whose sum is σ = 405901920. Its totient is φ = 402518928.

The previous prime is 404210407. The next prime is 404210447. The reversal of 404210423 is 324012404.

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 404210423 - 2⁴ = 404210407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 404210395 and 404210404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404210453) 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, 845390 + ... + 845867.

It is an arithmetic number, because the mean of its divisors is an integer number (101475480).

Almost surely, 2^404210423 is an apocalyptic number.

404210423 is a deficient number, since it is larger than the sum of its proper divisors (1691497).

404210423 is a wasteful number, since it uses less digits than its factorization.

404210423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1691496.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 404210423 is about 20104.9850285943. The cubic root of 404210423 is about 739.3825034972.

Adding to 404210423 its reverse (324012404), we get a palindrome (728222827).

The spelling of 404210423 in words is "four hundred four million, two hundred ten thousand, four hundred twenty-three".