249898 has 16 divisors (see below), whose sum is σ = 421344. Its totient is φ = 110160.

The previous prime is 249881. The next prime is 249911. The reversal of 249898 is 898942.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 249898.

It is an unprimeable number.

249898 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 7 ways as a sum of consecutive naturals, for example, 661 + ... + 967.

It is an arithmetic number, because the mean of its divisors is an integer number (26334).

2²⁴⁹⁸⁹⁸ is an apocalyptic number.

249898 is a deficient number, since it is larger than the sum of its proper divisors (171446).

249898 is a wasteful number, since it uses less digits than its factorization.

249898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357.

The product of its digits is 41472, while the sum is 40.

The square root of 249898 is about 499.8979895939. The cubic root of 249898 is about 62.9874838662.

The spelling of 249898 in words is "two hundred forty-nine thousand, eight hundred ninety-eight".