254728 has 16 divisors (see below), whose sum is σ = 505980. Its totient is φ = 119808.

The previous prime is 254713. The next prime is 254729. The reversal of 254728 is 827452.

It can be written as a sum of positive squares in 2 ways, for example, as 248004 + 6724 = 498^2 + 82^2 .

It is a junction number, because it is equal to n+sod(n) for n = 254696 and 254705.

It is not an unprimeable number, because it can be changed into a prime (254729) by changing a digit.

254728 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 3 ways as a sum of consecutive naturals, for example, 801 + ... + 1072.

2²⁵⁴⁷²⁸ is an apocalyptic number.

It is an amenable number.

254728 is a deficient number, since it is larger than the sum of its proper divisors (251252).

254728 is a wasteful number, since it uses less digits than its factorization.

254728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1896 (or 1892 counting only the distinct ones).

The product of its digits is 4480, while the sum is 28.

The square root of 254728 is about 504.7058549294. The cubic root of 254728 is about 63.3907020966.

It can be divided in two parts, 25 and 4728, that added together give a triangular number (4753 = T₉₇).

The spelling of 254728 in words is "two hundred fifty-four thousand, seven hundred twenty-eight".