298118681 has 16 divisors (see below), whose sum is σ = 366871680. Its totient is φ = 236417280.

The previous prime is 298118669. The next prime is 298118701. The reversal of 298118681 is 186811892.

It is a cyclic number.

It is not a de Polignac number, because 298118681 - 2²⁶ = 231009817 is a prime.

It is a super-2 number, since 2×298118681² = 177749495922359522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (298118621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14210 + ... + 28251.

It is an arithmetic number, because the mean of its divisors is an integer number (22929480).

Almost surely, 2^298118681 is an apocalyptic number.

It is an amenable number.

298118681 is a deficient number, since it is larger than the sum of its proper divisors (68752999).

298118681 is a wasteful number, since it uses less digits than its factorization.

298118681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42544.

The product of its digits is 55296, while the sum is 44.

The square root of 298118681 is about 17266.1136623156. The cubic root of 298118681 is about 668.0306625640.

The spelling of 298118681 in words is "two hundred ninety-eight million, one hundred eighteen thousand, six hundred eighty-one".