998300360640 has 448 divisors, whose sum is σ = 3596690718720. Its totient is φ = 232407552000.

The previous prime is 998300360639. The next prime is 998300360641. The reversal of 998300360640 is 46063003899.

It is an interprime number because it is at equal distance from previous prime (998300360639) and next prime (998300360641).

It is a super-2 number, since 2×998300360640² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 998300360640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998300360641) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 42872521 + ... + 42895799.

Almost surely, 2^998300360640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 998300360640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1798345359360).

998300360640 is an abundant number, since it is smaller than the sum of its proper divisors (2598390358080).

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

998300360640 is a wasteful number, since it uses less digits than its factorization.

998300360640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23472 (or 23462 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 48.

The spelling of 998300360640 in words is "nine hundred ninety-eight billion, three hundred million, three hundred sixty thousand, six hundred forty".