19896448 has 64 divisors (see below), whose sum is σ = 46609920. Its totient is φ = 8340480.

The previous prime is 19896433. The next prime is 19896479. The reversal of 19896448 is 84469891.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17761 + ... + 18847.

It is an arithmetic number, because the mean of its divisors is an integer number (728280).

Almost surely, 2^19896448 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 19896448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23304960).

19896448 is an abundant number, since it is smaller than the sum of its proper divisors (26713472).

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

19896448 is a wasteful number, since it uses less digits than its factorization.

19896448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125 (or 1113 counting only the distinct ones).

The product of its digits is 497664, while the sum is 49.

The square root of 19896448 is about 4460.5434646464. The cubic root of 19896448 is about 270.9724785167.

The spelling of 19896448 in words is "nineteen million, eight hundred ninety-six thousand, four hundred forty-eight".