249928456 has 16 divisors (see below), whose sum is σ = 480046140. Its totient is φ = 121916160.

The previous prime is 249928453. The next prime is 249928477. The reversal of 249928456 is 654829942.

249928456 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 248062500 + 1865956 = 15750^2 + 1366^2 .

It is not an unprimeable number, because it can be changed into a prime (249928453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 380661 + ... + 381316.

Almost surely, 2^249928456 is an apocalyptic number.

It is an amenable number.

249928456 is a deficient number, since it is larger than the sum of its proper divisors (230117684).

249928456 is a wasteful number, since it uses less digits than its factorization.

249928456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762024 (or 762020 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 49.

The square root of 249928456 is about 15809.1257190270. The cubic root of 249928456 is about 629.9004260197.

The spelling of 249928456 in words is "two hundred forty-nine million, nine hundred twenty-eight thousand, four hundred fifty-six".