254409 has 8 divisors (see below), whose sum is σ = 342240. Its totient is φ = 168096.

The previous prime is 254407. The next prime is 254413. The reversal of 254409 is 904452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 254409 - 2¹ = 254407 is a prime.

It is not an unprimeable number, because it can be changed into a prime (254407) 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, 102 + ... + 720.

It is an arithmetic number, because the mean of its divisors is an integer number (42780).

2²⁵⁴⁴⁰⁹ is an apocalyptic number.

It is an amenable number.

254409 is a deficient number, since it is larger than the sum of its proper divisors (87831).

254409 is a wasteful number, since it uses less digits than its factorization.

254409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759.

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

The square root of 254409 is about 504.3897302682. The cubic root of 254409 is about 63.3642293084.

The spelling of 254409 in words is "two hundred fifty-four thousand, four hundred nine".