9980443200 has 672 divisors, whose sum is σ = 40983099136. Its totient is φ = 2070282240.

The previous prime is 9980443189. The next prime is 9980443201. The reversal of 9980443200 is 23440899.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (9980443201) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 31886244 + ... + 31886556.

Almost surely, 2^9980443200 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 9980443200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20491549568).

9980443200 is an abundant number, since it is smaller than the sum of its proper divisors (31002655936).

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

9980443200 is a wasteful number, since it uses less digits than its factorization.

9980443200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431 (or 416 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 9980443200 is about 99902.1681446404. The cubic root of 9980443200 is about 2153.0293118651.

The spelling of 9980443200 in words is "nine billion, nine hundred eighty million, four hundred forty-three thousand, two hundred".