249948648 has 48 divisors (see below), whose sum is σ = 712576800. Its totient is φ = 78930720.

The previous prime is 249948641. The next prime is 249948649. The reversal of 249948648 is 846849942.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 249948594 and 249948603.

It is not an unprimeable number, because it can be changed into a prime (249948641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89988 + ... + 92723.

It is an arithmetic number, because the mean of its divisors is an integer number (14845350).

Almost surely, 2^249948648 is an apocalyptic number.

It is an amenable number.

249948648 is an abundant number, since it is smaller than the sum of its proper divisors (462628152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

249948648 is a wasteful number, since it uses less digits than its factorization.

249948648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182742 (or 182735 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 54.

The square root of 249948648 is about 15809.7643246191. The cubic root of 249948648 is about 629.9173890166.

The spelling of 249948648 in words is "two hundred forty-nine million, nine hundred forty-eight thousand, six hundred forty-eight".