19889196 has 24 divisors (see below), whose sum is σ = 46502400. Its totient is φ = 6616272.

The previous prime is 19889189. The next prime is 19889203. The reversal of 19889196 is 69198891.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (19889189) and next prime (19889203).

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, 5805 + ... + 8571.

It is an arithmetic number, because the mean of its divisors is an integer number (1937600).

Almost surely, 2^19889196 is an apocalyptic number.

It is an amenable number.

19889196 is an abundant number, since it is smaller than the sum of its proper divisors (26613204).

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

19889196 is a wasteful number, since it uses less digits than its factorization.

19889196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3373 (or 3371 counting only the distinct ones).

The product of its digits is 279936, while the sum is 51.

The square root of 19889196 is about 4459.7304851302. The cubic root of 19889196 is about 270.9395525188.

The spelling of 19889196 in words is "nineteen million, eight hundred eighty-nine thousand, one hundred ninety-six".