19980048 has 80 divisors (see below), whose sum is σ = 57139200. Its totient is φ = 5965440.

The previous prime is 19980041. The next prime is 19980053. The reversal of 19980048 is 84008991.

It is a junction number, because it is equal to n+sod(n) for n = 19979988 and 19980015.

It is not an unprimeable number, because it can be changed into a prime (19980041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41473 + ... + 41951.

It is an arithmetic number, because the mean of its divisors is an integer number (714240).

Almost surely, 2^19980048 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 19980048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28569600).

19980048 is an abundant number, since it is smaller than the sum of its proper divisors (37159152).

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

19980048 is a wasteful number, since it uses less digits than its factorization.

19980048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580 (or 574 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 19980048 is about 4469.9046969706. The cubic root of 19980048 is about 271.3514681934.

The spelling of 19980048 in words is "nineteen million, nine hundred eighty thousand, forty-eight".