250420 has 24 divisors (see below), whose sum is σ = 554400. Its totient is φ = 94752.

The previous prime is 250409. The next prime is 250423. The reversal of 250420 is 24052.

It is a happy number.

250420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 250420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (250423) 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, 51 + ... + 709.

It is an arithmetic number, because the mean of its divisors is an integer number (23100).

2²⁵⁰⁴²⁰ is an apocalyptic number.

250420 is a gapful number since it is divisible by the number (20) 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 250420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277200).

250420 is an abundant number, since it is smaller than the sum of its proper divisors (303980).

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

250420 is a wasteful number, since it uses less digits than its factorization.

250420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687 (or 685 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 250420 is about 500.4198237480. The cubic root of 250420 is about 63.0313105470.

Adding to 250420 its reverse (24052), we get a palindrome (274472).

The spelling of 250420 in words is "two hundred fifty thousand, four hundred twenty".