425744 has 40 divisors (see below), whose sum is σ = 937440. Its totient is φ = 185600.

The previous prime is 425713. The next prime is 425779. The reversal of 425744 is 447524.

It is an Ulam number.

It is an unprimeable number.

425744 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 7 ways as a sum of consecutive naturals, for example, 7187 + ... + 7245.

It is an arithmetic number, because the mean of its divisors is an integer number (23436).

2⁴²⁵⁷⁴⁴ is an apocalyptic number.

425744 is a gapful number since it is divisible by the number (44) 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 425744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (468720).

425744 is an abundant number, since it is smaller than the sum of its proper divisors (511696).

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

425744 is a wasteful number, since it uses less digits than its factorization.

425744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119 (or 113 counting only the distinct ones).

The product of its digits is 4480, while the sum is 26.

The square root of 425744 is about 652.4906129593. The cubic root of 425744 is about 75.2285767354.

The spelling of 425744 in words is "four hundred twenty-five thousand, seven hundred forty-four".