19688088 has 32 divisors (see below), whose sum is σ = 56252160. Its totient is φ = 5625120.

The previous prime is 19688063. The next prime is 19688101. The reversal of 19688088 is 88088691.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58428 + ... + 58763.

It is an arithmetic number, because the mean of its divisors is an integer number (1757880).

Almost surely, 2^19688088 is an apocalyptic number.

It is an amenable number.

19688088 is an abundant number, since it is smaller than the sum of its proper divisors (36564072).

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

19688088 is a wasteful number, since it uses less digits than its factorization.

19688088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117207 (or 117203 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 48.

The square root of 19688088 is about 4437.1260969235. The cubic root of 19688088 is about 270.0232627419.

The spelling of 19688088 in words is "nineteen million, six hundred eighty-eight thousand, eighty-eight".