249998 has 12 divisors (see below), whose sum is σ = 436392. Its totient is φ = 107100.

The previous prime is 249989. The next prime is 250007. The reversal of 249998 is 899942.

249998 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (249989) and next prime (250007).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 249998.

It is an unprimeable number.

249998 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1178 + ... + 1373.

It is an arithmetic number, because the mean of its divisors is an integer number (36366).

2²⁴⁹⁹⁹⁸ is an apocalyptic number.

249998 is a deficient number, since it is larger than the sum of its proper divisors (186394).

249998 is a wasteful number, since it uses less digits than its factorization.

249998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2567 (or 2560 counting only the distinct ones).

The product of its digits is 46656, while the sum is 41.

The square root of 249998 is about 499.9979999960. The cubic root of 249998 is about 62.9958845048.

The spelling of 249998 in words is "two hundred forty-nine thousand, nine hundred ninety-eight".