254490 has 32 divisors (see below), whose sum is σ = 648000. Its totient is φ = 63744.

The previous prime is 254489. The next prime is 254491. The reversal of 254490 is 94452.

254490 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (254489) and next prime (254491).

It is a self number, because there is not a number n which added to its sum of digits gives 254490.

It is not an unprimeable number, because it can be changed into a prime (254491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261 + ... + 759.

It is an arithmetic number, because the mean of its divisors is an integer number (20250).

2²⁵⁴⁴⁹⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 254490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (324000).

254490 is an abundant number, since it is smaller than the sum of its proper divisors (393510).

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

254490 is a wasteful number, since it uses less digits than its factorization.

254490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 254490 is about 504.4700189308. The cubic root of 254490 is about 63.3709533341.

The spelling of 254490 in words is "two hundred fifty-four thousand, four hundred ninety".