249827868 has 48 divisors (see below), whose sum is σ = 649020960. Its totient is φ = 83106432.

The previous prime is 249827861. The next prime is 249827911. The reversal of 249827868 is 868728942.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249827861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58080 + ... + 62232.

It is an arithmetic number, because the mean of its divisors is an integer number (13521270).

Almost surely, 2^249827868 is an apocalyptic number.

It is an amenable number.

249827868 is an abundant number, since it is smaller than the sum of its proper divisors (399193092).

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

249827868 is a wasteful number, since it uses less digits than its factorization.

249827868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4723 (or 4715 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 54.

The square root of 249827868 is about 15805.9440717725. The cubic root of 249827868 is about 629.8159099318.

The spelling of 249827868 in words is "two hundred forty-nine million, eight hundred twenty-seven thousand, eight hundred sixty-eight".