249963996 has 12 divisors (see below), whose sum is σ = 583249352. Its totient is φ = 83321328.

The previous prime is 249963983. The next prime is 249963997. The reversal of 249963996 is 699369942.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249963997) 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, 10415155 + ... + 10415178.

Almost surely, 2^249963996 is an apocalyptic number.

It is an amenable number.

249963996 is an abundant number, since it is smaller than the sum of its proper divisors (333285356).

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

249963996 is a wasteful number, since it uses less digits than its factorization.

249963996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20830340 (or 20830338 counting only the distinct ones).

The product of its digits is 5668704, while the sum is 57.

The square root of 249963996 is about 15810.2497133980. The cubic root of 249963996 is about 629.9302820306.

The spelling of 249963996 in words is "two hundred forty-nine million, nine hundred sixty-three thousand, nine hundred ninety-six".