425140 has 24 divisors (see below), whose sum is σ = 924840. Its totient is φ = 163968.

The previous prime is 425123. The next prime is 425147. The reversal of 425140 is 41524.

It can be written as a sum of positive squares in 4 ways, for example, as 156816 + 268324 = 396^2 + 518^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214 + ... + 946.

It is an arithmetic number, because the mean of its divisors is an integer number (38535).

2⁴²⁵¹⁴⁰ 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 425140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (462420).

425140 is an abundant number, since it is smaller than the sum of its proper divisors (499700).

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

425140 is a wasteful number, since it uses less digits than its factorization.

425140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771 (or 769 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 425140 is about 652.0276067775. The cubic root of 425140 is about 75.1929844821.

Adding to 425140 its reverse (41524), we get a palindrome (466664).

It can be divided in two parts, 425 and 140, that added together give a palindrome (565).

The spelling of 425140 in words is "four hundred twenty-five thousand, one hundred forty".