249563838 has 8 divisors (see below), whose sum is σ = 499127688. Its totient is φ = 83187944.

The previous prime is 249563789. The next prime is 249563849. The reversal of 249563838 is 838365942.

249563838 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

249563838 is an admirable number.

It is a congruent number.

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, 20796981 + ... + 20796992.

It is an arithmetic number, because the mean of its divisors is an integer number (62390961).

Almost surely, 2^249563838 is an apocalyptic number.

249563838 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

249563838 is a wasteful number, since it uses less digits than its factorization.

249563838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41593978.

The product of its digits is 1244160, while the sum is 48.

The square root of 249563838 is about 15797.5896262689. The cubic root of 249563838 is about 629.5939585650.

The spelling of 249563838 in words is "two hundred forty-nine million, five hundred sixty-three thousand, eight hundred thirty-eight".