9980544 has 128 divisors (see below), whose sum is σ = 31334400. Its totient is φ = 2755584.

The previous prime is 9980539. The next prime is 9980599. The reversal of 9980544 is 4450899.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×9980544² = 199222517071872, which contains 22 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126297 + ... + 126375.

It is an arithmetic number, because the mean of its divisors is an integer number (244800).

Almost surely, 2^9980544 is an apocalyptic number.

9980544 is a gapful number since it is divisible by the number (94) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9980544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15667200).

9980544 is an abundant number, since it is smaller than the sum of its proper divisors (21353856).

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

9980544 is a wasteful number, since it uses less digits than its factorization.

9980544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150 (or 138 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 9980544 is about 3159.1998987085. The cubic root of 9980544 is about 215.3036560195.

The spelling of 9980544 in words is "nine million, nine hundred eighty thousand, five hundred forty-four".