425904 has 40 divisors (see below), whose sum is σ = 1160640. Its totient is φ = 134208.

The previous prime is 425903. The next prime is 425911. The reversal of 425904 is 409524.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 425904.

It is not an unprimeable number, because it can be changed into a prime (425903) 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, 679 + ... + 1145.

It is an arithmetic number, because the mean of its divisors is an integer number (29016).

2⁴²⁵⁹⁰⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 425904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (580320).

425904 is an abundant number, since it is smaller than the sum of its proper divisors (734736).

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

425904 is a wasteful number, since it uses less digits than its factorization.

425904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497 (or 491 counting only the distinct ones).

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

The square root of 425904 is about 652.6132085700. The cubic root of 425904 is about 75.2379995065.

The spelling of 425904 in words is "four hundred twenty-five thousand, nine hundred four".