249726966 has 8 divisors (see below), whose sum is σ = 499453944. Its totient is φ = 83242320.

The previous prime is 249726959. The next prime is 249726977. The reversal of 249726966 is 669627942.

It is a sphenic number, since it is the product of 3 distinct primes.

249726966 is an admirable number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 20810575 + ... + 20810586.

It is an arithmetic number, because the mean of its divisors is an integer number (62431743).

Almost surely, 2^249726966 is an apocalyptic number.

249726966 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

249726966 is a wasteful number, since it uses less digits than its factorization.

249726966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41621166.

The product of its digits is 1959552, while the sum is 51.

The square root of 249726966 is about 15802.7518489661. The cubic root of 249726966 is about 629.7311072194.

The spelling of 249726966 in words is "two hundred forty-nine million, seven hundred twenty-six thousand, nine hundred sixty-six".