425404 has 12 divisors (see below), whose sum is σ = 850864. Its totient is φ = 182304.

The previous prime is 425393. The next prime is 425417. The reversal of 425404 is 404524.

425404 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7569 + ... + 7624.

2⁴²⁵⁴⁰⁴ is an apocalyptic number.

It is an amenable number.

425404 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

425404 is a wasteful number, since it uses less digits than its factorization.

425404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15204 (or 15202 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 425404 is about 652.2300207749. The cubic root of 425404 is about 75.2085455054.

Adding to 425404 its reverse (404524), we get a palindrome (829928).

The spelling of 425404 in words is "four hundred twenty-five thousand, four hundred four".