19663348 has 6 divisors (see below), whose sum is σ = 34410866. Its totient is φ = 9831672.

The previous prime is 19663333. The next prime is 19663351. The reversal of 19663348 is 84336691.

19663348 is nontrivially palindromic in base 3.

It can be written as a sum of positive squares in only one way, i.e., 11437924 + 8225424 = 3382^2 + 2868^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 19663348.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2457915 + ... + 2457922.

Almost surely, 2^19663348 is an apocalyptic number.

It is an amenable number.

19663348 is a deficient number, since it is larger than the sum of its proper divisors (14747518).

19663348 is a wasteful number, since it uses less digits than its factorization.

19663348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4915841 (or 4915839 counting only the distinct ones).

The product of its digits is 93312, while the sum is 40.

The square root of 19663348 is about 4434.3373800377. The cubic root of 19663348 is about 269.9101118245.

The spelling of 19663348 in words is "nineteen million, six hundred sixty-three thousand, three hundred forty-eight".