19985068 has 12 divisors (see below), whose sum is σ = 36494640. Its totient is φ = 9558032.

The previous prime is 19985051. The next prime is 19985071. The reversal of 19985068 is 86058991.

It is a Harshad number since it is a multiple of its sum of digits (46).

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, 108523 + ... + 108706.

It is an arithmetic number, because the mean of its divisors is an integer number (3041220).

Almost surely, 2^19985068 is an apocalyptic number.

It is an amenable number.

19985068 is a deficient number, since it is larger than the sum of its proper divisors (16509572).

19985068 is a wasteful number, since it uses less digits than its factorization.

19985068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217256 (or 217254 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 46.

The square root of 19985068 is about 4470.4661949287. The cubic root of 19985068 is about 271.3741920345.

The spelling of 19985068 in words is "nineteen million, nine hundred eighty-five thousand, sixty-eight".