298858 has 8 divisors (see below), whose sum is σ = 512352. Its totient is φ = 128076.

The previous prime is 298853. The next prime is 298861. The reversal of 298858 is 858892.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×298858² = 178632208328, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 298858.

It is not an unprimeable number, because it can be changed into a prime (298853) 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, 10660 + ... + 10687.

It is an arithmetic number, because the mean of its divisors is an integer number (64044).

2²⁹⁸⁸⁵⁸ is an apocalyptic number.

298858 is a deficient number, since it is larger than the sum of its proper divisors (213494).

298858 is a wasteful number, since it uses less digits than its factorization.

298858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21356.

The product of its digits is 46080, while the sum is 40.

The square root of 298858 is about 546.6790649001. The cubic root of 298858 is about 66.8582433925.

It can be divided in two parts, 298 and 858, that added together give a square (1156 = 34²).

The spelling of 298858 in words is "two hundred ninety-eight thousand, eight hundred fifty-eight".