19930012 has 12 divisors (see below), whose sum is σ = 36713320. Its totient is φ = 9440496.

The previous prime is 19930007. The next prime is 19930033. The reversal of 19930012 is 21003991.

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 in 3 ways as a sum of consecutive naturals, for example, 131043 + ... + 131194.

Almost surely, 2^19930012 is an apocalyptic number.

It is an amenable number.

19930012 is a deficient number, since it is larger than the sum of its proper divisors (16783308).

19930012 is a wasteful number, since it uses less digits than its factorization.

19930012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262260 (or 262258 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 19930012 is about 4464.3042011046. The cubic root of 19930012 is about 271.1247638371.

The spelling of 19930012 in words is "nineteen million, nine hundred thirty thousand, twelve".