19870848 has 96 divisors (see below), whose sum is σ = 58556160. Its totient is φ = 6465024.

The previous prime is 19870847. The next prime is 19870867. The reversal of 19870848 is 84807891.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (19870847) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53961 + ... + 54327.

It is an arithmetic number, because the mean of its divisors is an integer number (609960).

Almost surely, 2^19870848 is an apocalyptic number.

19870848 is a gapful number since it is divisible by the number (18) 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 19870848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29278080).

19870848 is an abundant number, since it is smaller than the sum of its proper divisors (38685312).

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

19870848 is a wasteful number, since it uses less digits than its factorization.

19870848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434 (or 419 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The square root of 19870848 is about 4457.6729355124. The cubic root of 19870848 is about 270.8562119897.

The spelling of 19870848 in words is "nineteen million, eight hundred seventy thousand, eight hundred forty-eight".