19668048 has 40 divisors (see below), whose sum is σ = 53800128. Its totient is φ = 6170112.

The previous prime is 19668041. The next prime is 19668049. The reversal of 19668048 is 84086691.

It is a super-2 number, since 2×19668048² = 773664224260608, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19668041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11236 + ... + 12867.

Almost surely, 2^19668048 is an apocalyptic number.

It is an amenable number.

19668048 is an abundant number, since it is smaller than the sum of its proper divisors (34132080).

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

19668048 is a wasteful number, since it uses less digits than its factorization.

19668048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24131 (or 24125 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 19668048 is about 4434.8673035391. The cubic root of 19668048 is about 269.9316150542.

The spelling of 19668048 in words is "nineteen million, six hundred sixty-eight thousand, forty-eight".