19379968 has 18 divisors (see below), whose sum is σ = 38684744. Its totient is φ = 9689856.

The previous prime is 19379963. The next prime is 19379977. The reversal of 19379968 is 86997391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19379963) by changing a digit.

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, 37596 + ... + 38107.

Almost surely, 2^19379968 is an apocalyptic number.

It is an amenable number.

19379968 is a deficient number, since it is larger than the sum of its proper divisors (19304776).

19379968 is an frugal number, since it uses more digits than its factorization.

19379968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75719 (or 75705 counting only the distinct ones).

The product of its digits is 734832, while the sum is 52.

The square root of 19379968 is about 4402.2685061227. The cubic root of 19379968 is about 268.6072219427.

The spelling of 19379968 in words is "nineteen million, three hundred seventy-nine thousand, nine hundred sixty-eight".