19285868 has 24 divisors (see below), whose sum is σ = 40250112. Its totient is φ = 7905744.

The previous prime is 19285859. The next prime is 19285879. The reversal of 19285868 is 86858291.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14330 + ... + 15617.

It is an arithmetic number, because the mean of its divisors is an integer number (1677088).

Almost surely, 2^19285868 is an apocalyptic number.

It is an amenable number.

19285868 is an abundant number, since it is smaller than the sum of its proper divisors (20964244).

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

19285868 is a wasteful number, since it uses less digits than its factorization.

19285868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29981 (or 29979 counting only the distinct ones).

The product of its digits is 276480, while the sum is 47.

The square root of 19285868 is about 4391.5678293748. The cubic root of 19285868 is about 268.1717730013.

The spelling of 19285868 in words is "nineteen million, two hundred eighty-five thousand, eight hundred sixty-eight".