19986068 has 24 divisors (see below), whose sum is σ = 36376032. Its totient is φ = 9599904.

The previous prime is 19986061. The next prime is 19986077. The reversal of 19986068 is 86068991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19986061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11471 + ... + 13097.

It is an arithmetic number, because the mean of its divisors is an integer number (1515668).

Almost surely, 2^19986068 is an apocalyptic number.

It is an amenable number.

19986068 is a deficient number, since it is larger than the sum of its proper divisors (16389964).

19986068 is a wasteful number, since it uses less digits than its factorization.

19986068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1751 (or 1749 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 47.

The square root of 19986068 is about 4470.5780386881. The cubic root of 19986068 is about 271.3787182415.

The spelling of 19986068 in words is "nineteen million, nine hundred eighty-six thousand, sixty-eight".