254678 has 8 divisors (see below), whose sum is σ = 395280. Its totient is φ = 122920.

The previous prime is 254663. The next prime is 254699. The reversal of 254678 is 876452.

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

It is a d-powerful number, because it can be written as 2¹⁷ + 5⁵ + 6⁴ + 4⁵ + 7⁶ + 8³ .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2138 + ... + 2253.

It is an arithmetic number, because the mean of its divisors is an integer number (49410).

2²⁵⁴⁶⁷⁸ is an apocalyptic number.

254678 is a deficient number, since it is larger than the sum of its proper divisors (140602).

254678 is a wasteful number, since it uses less digits than its factorization.

254678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4422.

The product of its digits is 13440, while the sum is 32.

The square root of 254678 is about 504.6563186962. The cubic root of 254678 is about 63.3865542179.

The spelling of 254678 in words is "two hundred fifty-four thousand, six hundred seventy-eight".