249266856 has 16 divisors (see below), whose sum is σ = 623167200. Its totient is φ = 83088944.

The previous prime is 249266851. The next prime is 249266863. The reversal of 249266856 is 658662942.

It is a happy number.

249266856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (249266851) 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, 5193036 + ... + 5193083.

It is an arithmetic number, because the mean of its divisors is an integer number (38947950).

Almost surely, 2^249266856 is an apocalyptic number.

It is an amenable number.

249266856 is an abundant number, since it is smaller than the sum of its proper divisors (373900344).

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

249266856 is a wasteful number, since it uses less digits than its factorization.

249266856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10386128 (or 10386124 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 48.

The square root of 249266856 is about 15788.1872296980. The cubic root of 249266856 is about 629.3441196302.

The spelling of 249266856 in words is "two hundred forty-nine million, two hundred sixty-six thousand, eight hundred fifty-six".