249318968 has 8 divisors (see below), whose sum is σ = 467473080. Its totient is φ = 124659480.

The previous prime is 249318961. The next prime is 249318989. The reversal of 249318968 is 869813942.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249318961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15582428 + ... + 15582443.

It is an arithmetic number, because the mean of its divisors is an integer number (58434135).

Almost surely, 2^249318968 is an apocalyptic number.

It is an amenable number.

249318968 is a deficient number, since it is larger than the sum of its proper divisors (218154112).

249318968 is a wasteful number, since it uses less digits than its factorization.

249318968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31164877 (or 31164873 counting only the distinct ones).

The product of its digits is 746496, while the sum is 50.

The square root of 249318968 is about 15789.8374912473. The cubic root of 249318968 is about 629.3879736963.

The spelling of 249318968 in words is "two hundred forty-nine million, three hundred eighteen thousand, nine hundred sixty-eight".