904425 has 24 divisors (see below), whose sum is σ = 1547520. Its totient is φ = 465600.

The previous prime is 904399. The next prime is 904441. The reversal of 904425 is 524409.

It is not a de Polignac number, because 904425 - 2⁶ = 904361 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 904395 and 904404.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 904425.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2131 + ... + 2519.

It is an arithmetic number, because the mean of its divisors is an integer number (64480).

2⁹⁰⁴⁴²⁵ is an apocalyptic number.

It is an amenable number.

904425 is a deficient number, since it is larger than the sum of its proper divisors (643095).

904425 is a wasteful number, since it uses less digits than its factorization.

904425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433 (or 428 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 904425 is about 951.0126182128. The cubic root of 904425 is about 96.7069128228.

Subtracting from 904425 its sum of digits (24), we obtain a square (904401 = 951²).

The spelling of 904425 in words is "nine hundred four thousand, four hundred twenty-five".