19481448 has 64 divisors (see below), whose sum is σ = 56603520. Its totient is φ = 5472000.

The previous prime is 19481447. The next prime is 19481467. The reversal of 19481448 is 84418491.

It is not an unprimeable number, because it can be changed into a prime (19481443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9298 + ... + 11198.

It is an arithmetic number, because the mean of its divisors is an integer number (884430).

Almost surely, 2^19481448 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 19481448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28301760).

19481448 is an abundant number, since it is smaller than the sum of its proper divisors (37122072).

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

19481448 is a wasteful number, since it uses less digits than its factorization.

19481448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1978 (or 1974 counting only the distinct ones).

The product of its digits is 36864, while the sum is 39.

The square root of 19481448 is about 4413.7793329527. The cubic root of 19481448 is about 269.0752450928.

The spelling of 19481448 in words is "nineteen million, four hundred eighty-one thousand, four hundred forty-eight".