19885696 has 32 divisors (see below), whose sum is σ = 39819780. Its totient is φ = 9891840.

The previous prime is 19885681. The next prime is 19885703. The reversal of 19885696 is 69658891.

It can be written as a sum of positive squares in 2 ways, for example, as 19009600 + 876096 = 4360^2 + 936^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42906 + ... + 43366.

Almost surely, 2^19885696 is an apocalyptic number.

19885696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

19885696 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

19885696 is an equidigital number, since it uses as much as digits as its factorization.

19885696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812 (or 800 counting only the distinct ones).

The product of its digits is 933120, while the sum is 52.

The square root of 19885696 is about 4459.3380674714. The cubic root of 19885696 is about 270.9236587296.

The spelling of 19885696 in words is "nineteen million, eight hundred eighty-five thousand, six hundred ninety-six".