250290 has 48 divisors (see below), whose sum is σ = 681408. Its totient is φ = 66096.

The previous prime is 250279. The next prime is 250301. The reversal of 250290 is 92052.

It is an interprime number because it is at equal distance from previous prime (250279) and next prime (250301).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

250290 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 23 ways as a sum of consecutive naturals, for example, 2379 + ... + 2481.

It is an arithmetic number, because the mean of its divisors is an integer number (14196).

2²⁵⁰²⁹⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 250290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (340704).

250290 is an abundant number, since it is smaller than the sum of its proper divisors (431118).

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

250290 is a wasteful number, since it uses less digits than its factorization.

250290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 250290 is about 500.2899159487. The cubic root of 250290 is about 63.0204015558.

The spelling of 250290 in words is "two hundred fifty thousand, two hundred ninety".