249956984 has 16 divisors (see below), whose sum is σ = 496238400. Its totient is φ = 117626752.

The previous prime is 249956983. The next prime is 249957011. The reversal of 249956984 is 489659942.

It is a happy number.

249956984 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249956983) 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, 918824 + ... + 919095.

It is an arithmetic number, because the mean of its divisors is an integer number (31014900).

Almost surely, 2^249956984 is an apocalyptic number.

It is an amenable number.

249956984 is a deficient number, since it is larger than the sum of its proper divisors (246281416).

249956984 is a wasteful number, since it uses less digits than its factorization.

249956984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1837942 (or 1837938 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 56.

The square root of 249956984 is about 15810.0279569645. The cubic root of 249956984 is about 629.9243916990.

The spelling of 249956984 in words is "two hundred forty-nine million, nine hundred fifty-six thousand, nine hundred eighty-four".