19885712 has 40 divisors (see below), whose sum is σ = 48038592. Its totient is φ = 7747200.

The previous prime is 19885703. The next prime is 19885739. The reversal of 19885712 is 21758891.

It is a self number, because there is not a number n which added to its sum of digits gives 19885712.

It is an unprimeable number.

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, 6839 + ... + 9302.

Almost surely, 2^19885712 is an apocalyptic number.

It is an amenable number.

19885712 is an abundant number, since it is smaller than the sum of its proper divisors (28152880).

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

19885712 is a wasteful number, since it uses less digits than its factorization.

19885712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16167 (or 16161 counting only the distinct ones).

The product of its digits is 40320, while the sum is 41.

The square root of 19885712 is about 4459.3398614593. The cubic root of 19885712 is about 270.9237313912.

The spelling of 19885712 in words is "nineteen million, eight hundred eighty-five thousand, seven hundred twelve".