19814448 has 40 divisors (see below), whose sum is σ = 52282368. Its totient is φ = 6463552.

The previous prime is 19814429. The next prime is 19814461. The reversal of 19814448 is 84441891.

It is a super-3 number, since 3×19814448³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 2136 + ... + 6647.

Almost surely, 2^19814448 is an apocalyptic number.

It is an amenable number.

19814448 is an abundant number, since it is smaller than the sum of its proper divisors (32467920).

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

19814448 is a wasteful number, since it uses less digits than its factorization.

19814448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8841 (or 8835 counting only the distinct ones).

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

The square root of 19814448 is about 4451.3422694733. The cubic root of 19814448 is about 270.5997094953.

The spelling of 19814448 in words is "nineteen million, eight hundred fourteen thousand, four hundred forty-eight".