19216448 has 28 divisors (see below), whose sum is σ = 40142160. Its totient is φ = 9101952.

The previous prime is 19216427. The next prime is 19216453. The reversal of 19216448 is 84461291.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6686 + ... + 9117.

Almost surely, 2^19216448 is an apocalyptic number.

It is an amenable number.

19216448 is an abundant number, since it is smaller than the sum of its proper divisors (20925712).

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

19216448 is a wasteful number, since it uses less digits than its factorization.

19216448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15834 (or 15824 counting only the distinct ones).

The product of its digits is 13824, while the sum is 35.

The square root of 19216448 is about 4383.6569208824. The cubic root of 19216448 is about 267.8496223277.

The spelling of 19216448 in words is "nineteen million, two hundred sixteen thousand, four hundred forty-eight".