19642168 has 32 divisors (see below), whose sum is σ = 45329760. Its totient is φ = 7770240.

The previous prime is 19642159. The next prime is 19642237. The reversal of 19642168 is 86124691.

It is a happy number.

It is a congruent number.

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, 12763 + ... + 14218.

It is an arithmetic number, because the mean of its divisors is an integer number (1416555).

Almost surely, 2^19642168 is an apocalyptic number.

It is an amenable number.

19642168 is an abundant number, since it is smaller than the sum of its proper divisors (25687592).

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

19642168 is a wasteful number, since it uses less digits than its factorization.

19642168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27007 (or 27003 counting only the distinct ones).

The product of its digits is 20736, while the sum is 37.

The square root of 19642168 is about 4431.9485556581. The cubic root of 19642168 is about 269.8131675005.

The spelling of 19642168 in words is "nineteen million, six hundred forty-two thousand, one hundred sixty-eight".