249706968 has 64 divisors (see below), whose sum is σ = 751008000. Its totient is φ = 67588992.

The previous prime is 249706957. The next prime is 249706973. The reversal of 249706968 is 869607942.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 249706968.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35923 + ... + 42306.

It is an arithmetic number, because the mean of its divisors is an integer number (11734500).

Almost surely, 2^249706968 is an apocalyptic number.

249706968 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

249706968 is an abundant number, since it is smaller than the sum of its proper divisors (501301032).

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

249706968 is a wasteful number, since it uses less digits than its factorization.

249706968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78264 (or 78260 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 51.

The square root of 249706968 is about 15802.1190983994. The cubic root of 249706968 is about 629.7142972622.

The spelling of 249706968 in words is "two hundred forty-nine million, seven hundred six thousand, nine hundred sixty-eight".