249850 has 24 divisors (see below), whose sum is σ = 491040. Its totient is φ = 94320.

The previous prime is 249833. The next prime is 249853. The reversal of 249850 is 58942.

It is a happy number.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (249853) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 819 + ... + 1081.

It is an arithmetic number, because the mean of its divisors is an integer number (20460).

2²⁴⁹⁸⁵⁰ is an apocalyptic number.

249850 is a deficient number, since it is larger than the sum of its proper divisors (241190).

249850 is a wasteful number, since it uses less digits than its factorization.

249850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294 (or 289 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 249850 is about 499.8499774932. The cubic root of 249850 is about 62.9834507636.

The spelling of 249850 in words is "two hundred forty-nine thousand, eight hundred fifty".