19719002 has 16 divisors (see below), whose sum is σ = 30497280. Its totient is φ = 9555408.

The previous prime is 19719001. The next prime is 19719013. The reversal of 19719002 is 20091791.

It is not an unprimeable number, because it can be changed into a prime (19719001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32183 + ... + 32789.

It is an arithmetic number, because the mean of its divisors is an integer number (1906080).

Almost surely, 2^19719002 is an apocalyptic number.

19719002 is a deficient number, since it is larger than the sum of its proper divisors (10778278).

19719002 is a wasteful number, since it uses less digits than its factorization.

19719002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1085.

The product of its (nonzero) digits is 1134, while the sum is 29.

The square root of 19719002 is about 4440.6082916646. The cubic root of 19719002 is about 270.1645179331.

The spelling of 19719002 in words is "nineteen million, seven hundred nineteen thousand, two".