254728449 has 16 divisors (see below), whose sum is σ = 386581440. Its totient is φ = 165676320.

The previous prime is 254728447. The next prime is 254728451. The reversal of 254728449 is 944827452.

254728449 is digitally balanced in base 2, because in such base 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 (254728447) and next prime (254728451).

It is not a de Polignac number, because 254728449 - 2¹ = 254728447 is a prime.

It is not an unprimeable number, because it can be changed into a prime (254728447) 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, 113947 + ... + 116160.

It is an arithmetic number, because the mean of its divisors is an integer number (24161340).

Almost surely, 2^254728449 is an apocalyptic number.

It is an amenable number.

254728449 is a deficient number, since it is larger than the sum of its proper divisors (131852991).

254728449 is a wasteful number, since it uses less digits than its factorization.

254728449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230157 (or 230151 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 254728449 is about 15960.2145662269. The cubic root of 254728449 is about 633.9073934206.

The spelling of 254728449 in words is "two hundred fifty-four million, seven hundred twenty-eight thousand, four hundred forty-nine".