It is a self number, because there is not a number n which added to its sum of digits gives 404500134.
It is a congruent number.
It is an unprimeable number.
Almost surely, 2404500134 is an apocalyptic number.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
404500134 is a wasteful number, since it uses less digits than its factorization.
404500134 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8744.
The square root of 404500134 is about 20112.1886924323. The cubic root of 404500134 is about 739.5591079555.
Adding to 404500134 its reverse (431005404), we get a palindrome (835505538).
The spelling of 404500134 in words is "four hundred four million, five hundred thousand, one hundred thirty-four".