19795128 has 32 divisors (see below), whose sum is σ = 50697360. Its totient is φ = 6437120.

The previous prime is 19795117. The next prime is 19795133. The reversal of 19795128 is 82159791.

It is a self number, because there is not a number n which added to its sum of digits gives 19795128.

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, 9075 + ... + 11042.

Almost surely, 2^19795128 is an apocalyptic number.

It is an amenable number.

19795128 is an abundant number, since it is smaller than the sum of its proper divisors (30902232).

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

19795128 is a wasteful number, since it uses less digits than its factorization.

19795128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20167 (or 20163 counting only the distinct ones).

The product of its digits is 45360, while the sum is 42.

The square root of 19795128 is about 4449.1716082884. The cubic root of 19795128 is about 270.5117318323.

The spelling of 19795128 in words is "nineteen million, seven hundred ninety-five thousand, one hundred twenty-eight".