249903968 has 12 divisors (see below), whose sum is σ = 491998500. Its totient is φ = 124951968.

The previous prime is 249903949. The next prime is 249904009. The reversal of 249903968 is 869309942.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3904718 + ... + 3904781.

It is an arithmetic number, because the mean of its divisors is an integer number (40999875).

Almost surely, 2^249903968 is an apocalyptic number.

It is an amenable number.

249903968 is a deficient number, since it is larger than the sum of its proper divisors (242094532).

249903968 is an equidigital number, since it uses as much as digits as its factorization.

249903968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7809509 (or 7809501 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 50.

The square root of 249903968 is about 15808.3512106734. The cubic root of 249903968 is about 629.8798527916.

The spelling of 249903968 in words is "two hundred forty-nine million, nine hundred three thousand, nine hundred sixty-eight".