249682668 has 24 divisors (see below), whose sum is σ = 582855168. Its totient is φ = 83190096.

The previous prime is 249682633. The next prime is 249682673. The reversal of 249682668 is 866286942.

249682668 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 249682668.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 40605 + ... + 46347.

It is an arithmetic number, because the mean of its divisors is an integer number (24285632).

Almost surely, 2^249682668 is an apocalyptic number.

It is an amenable number.

249682668 is an abundant number, since it is smaller than the sum of its proper divisors (333172500).

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

249682668 is a wasteful number, since it uses less digits than its factorization.

249682668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9373 (or 9371 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 51.

The square root of 249682668 is about 15801.3501954738. The cubic root of 249682668 is about 629.6938699136.

The spelling of 249682668 in words is "two hundred forty-nine million, six hundred eighty-two thousand, six hundred sixty-eight".