425400 has 48 divisors (see below), whose sum is σ = 1320600. Its totient is φ = 113280.

The previous prime is 425393. The next prime is 425417. The reversal of 425400 is 4524.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 425400.

It is a congruent number.

It is an unprimeable number.

425400 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 246 + ... + 954.

2⁴²⁵⁴⁰⁰ is an apocalyptic number.

425400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 425400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (660300).

425400 is an abundant number, since it is smaller than the sum of its proper divisors (895200).

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

425400 is a wasteful number, since it uses less digits than its factorization.

425400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728 (or 719 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 425400 is about 652.2269543648. The cubic root of 425400 is about 75.2083097804.

Adding to 425400 its reverse (4524), we get a palindrome (429924).

The spelling of 425400 in words is "four hundred twenty-five thousand, four hundred".