998981030 has 32 divisors (see below), whose sum is σ = 1907763840. Its totient is φ = 375331840.

The previous prime is 998981021. The next prime is 998981051. The reversal of 998981030 is 30189899.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82931 + ... + 94209.

It is an arithmetic number, because the mean of its divisors is an integer number (59617620).

Almost surely, 2^998981030 is an apocalyptic number.

998981030 is a deficient number, since it is larger than the sum of its proper divisors (908782810).

998981030 is a wasteful number, since it uses less digits than its factorization.

998981030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11824.

The product of its (nonzero) digits is 139968, while the sum is 47.

The square root of 998981030 is about 31606.6611650139. The cubic root of 998981030 is about 999.6602279013.

It can be divided in two parts, 9989 and 81030, that added together give a palindrome (91019).

The spelling of 998981030 in words is "nine hundred ninety-eight million, nine hundred eighty-one thousand, thirty".