19713448 has 16 divisors (see below), whose sum is σ = 37255680. Its totient is φ = 9778608.

The previous prime is 19713433. The next prime is 19713451. The reversal of 19713448 is 84431791.

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, 8686 + ... + 10717.

It is an arithmetic number, because the mean of its divisors is an integer number (2328480).

Almost surely, 2^19713448 is an apocalyptic number.

It is an amenable number.

19713448 is a deficient number, since it is larger than the sum of its proper divisors (17542232).

19713448 is a wasteful number, since it uses less digits than its factorization.

19713448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19536 (or 19532 counting only the distinct ones).

The product of its digits is 24192, while the sum is 37.

The square root of 19713448 is about 4439.9828828499. The cubic root of 19713448 is about 270.1391509524.

The spelling of 19713448 in words is "nineteen million, seven hundred thirteen thousand, four hundred forty-eight".