998580102 has 96 divisors (see below), whose sum is σ = 2335156128. Its totient is φ = 283465728.

The previous prime is 998580101. The next prime is 998580103. The reversal of 998580102 is 201085899.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (998580101) and next prime (998580103).

It is a super-2 number, since 2×998580102² = 1994324440220660808, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998580101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 913068 + ... + 914160.

It is an arithmetic number, because the mean of its divisors is an integer number (24324543).

Almost surely, 2^998580102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 998580102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1167578064).

998580102 is an abundant number, since it is smaller than the sum of its proper divisors (1336576026).

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

998580102 is a wasteful number, since it uses less digits than its factorization.

998580102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1194 (or 1181 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 42.

The square root of 998580102 is about 31600.3180680195. The cubic root of 998580102 is about 999.5264764775.

The spelling of 998580102 in words is "nine hundred ninety-eight million, five hundred eighty thousand, one hundred two".