19976448 has 108 divisors (see below), whose sum is σ = 57518160. Its totient is φ = 6137856.

The previous prime is 19976441. The next prime is 19976461. The reversal of 19976448 is 84467991.

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

Its product of digits (435456) is a multiple of the sum of its prime factors (112).

It is a junction number, because it is equal to n+sod(n) for n = 19976397 and 19976406.

It is not an unprimeable number, because it can be changed into a prime (19976441) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 539886 + ... + 539922.

Almost surely, 2^19976448 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 19976448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28759080).

19976448 is an abundant number, since it is smaller than the sum of its proper divisors (37541712).

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

19976448 is an equidigital number, since it uses as much as digits as its factorization.

19976448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112 (or 61 counting only the distinct ones).

The product of its digits is 435456, while the sum is 48.

The square root of 19976448 is about 4469.5019856803. The cubic root of 19976448 is about 271.3351698682.

The spelling of 19976448 in words is "nineteen million, nine hundred seventy-six thousand, four hundred forty-eight".