998824158 has 48 divisors (see below), whose sum is σ = 2199165696. Its totient is φ = 327583440.

The previous prime is 998824153. The next prime is 998824163. The reversal of 998824158 is 851428899.

It is an interprime number because it is at equal distance from previous prime (998824153) and next prime (998824163).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998824153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 403641 + ... + 406107.

It is an arithmetic number, because the mean of its divisors is an integer number (45815952).

Almost surely, 2^998824158 is an apocalyptic number.

998824158 is an abundant number, since it is smaller than the sum of its proper divisors (1200341538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

998824158 is a wasteful number, since it uses less digits than its factorization.

998824158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2829 (or 2826 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 54.

The square root of 998824158 is about 31604.1794388021. The cubic root of 998824158 is about 999.6078989435.

The spelling of 998824158 in words is "nine hundred ninety-eight million, eight hundred twenty-four thousand, one hundred fifty-eight".