249518244 has 12 divisors (see below), whose sum is σ = 582209264. Its totient is φ = 83172744.

The previous prime is 249518239. The next prime is 249518263. The reversal of 249518244 is 442815942.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10396582 + ... + 10396605.

Almost surely, 2^249518244 is an apocalyptic number.

It is an amenable number.

249518244 is an abundant number, since it is smaller than the sum of its proper divisors (332691020).

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

249518244 is a wasteful number, since it uses less digits than its factorization.

249518244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20793194 (or 20793192 counting only the distinct ones).

The product of its digits is 92160, while the sum is 39.

The square root of 249518244 is about 15796.1464921037. The cubic root of 249518244 is about 629.5556150621. Note that the first 3 decimals are identical.

The spelling of 249518244 in words is "two hundred forty-nine million, five hundred eighteen thousand, two hundred forty-four".