404134523 has 8 divisors (see below), whose sum is σ = 460823328. Its totient is φ = 351103104.

The previous prime is 404134513. The next prime is 404134531. The reversal of 404134523 is 325431404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404134523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 404134492 and 404134501.

It is not an unprimeable number, because it can be changed into a prime (404134513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 914111 + ... + 914552.

It is an arithmetic number, because the mean of its divisors is an integer number (57602916).

Almost surely, 2^404134523 is an apocalyptic number.

404134523 is a deficient number, since it is larger than the sum of its proper divisors (56688805).

404134523 is a wasteful number, since it uses less digits than its factorization.

404134523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1828693.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 404134523 is about 20103.0973484187. The cubic root of 404134523 is about 739.3362217903.

Adding to 404134523 its reverse (325431404), we get a palindrome (729565927).

The spelling of 404134523 in words is "four hundred four million, one hundred thirty-four thousand, five hundred twenty-three".