249075868 has 12 divisors (see below), whose sum is σ = 436032072. Its totient is φ = 124495280.

The previous prime is 249075863. The next prime is 249075877. The reversal of 249075868 is 868570942.

249075868 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 (249075863) 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, 5046 + ... + 22882.

It is an arithmetic number, because the mean of its divisors is an integer number (36336006).

Almost surely, 2^249075868 is an apocalyptic number.

It is an amenable number.

249075868 is a deficient number, since it is larger than the sum of its proper divisors (186956204).

249075868 is a wasteful number, since it uses less digits than its factorization.

249075868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21332 (or 21330 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 49.

The square root of 249075868 is about 15782.1376245425. The cubic root of 249075868 is about 629.1833442962.

The spelling of 249075868 in words is "two hundred forty-nine million, seventy-five thousand, eight hundred sixty-eight".