254638 has 8 divisors (see below), whose sum is σ = 402120. Its totient is φ = 120600.

The previous prime is 254627. The next prime is 254647. The reversal of 254638 is 836452.

254638 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×254638² = 129681022088, which contains 22 as substring.

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, 3313 + ... + 3388.

It is an arithmetic number, because the mean of its divisors is an integer number (50265).

2²⁵⁴⁶³⁸ is an apocalyptic number.

254638 is a deficient number, since it is larger than the sum of its proper divisors (147482).

254638 is a wasteful number, since it uses less digits than its factorization.

254638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6722.

The product of its digits is 5760, while the sum is 28.

The square root of 254638 is about 504.6166862085. The cubic root of 254638 is about 63.3832355241.

The spelling of 254638 in words is "two hundred fifty-four thousand, six hundred thirty-eight".