19828808 has 16 divisors (see below), whose sum is σ = 38461500. Its totient is φ = 9572416.

The previous prime is 19828807. The next prime is 19828813. The reversal of 19828808 is 80882891.

It can be written as a sum of positive squares in 2 ways, for example, as 18335524 + 1493284 = 4282^2 + 1222^2 .

It is not an unprimeable number, because it can be changed into a prime (19828801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42503 + ... + 42966.

Almost surely, 2^19828808 is an apocalyptic number.

It is an amenable number.

19828808 is a deficient number, since it is larger than the sum of its proper divisors (18632692).

19828808 is a wasteful number, since it uses less digits than its factorization.

19828808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85504 (or 85500 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 44.

The square root of 19828808 is about 4452.9549739471. The cubic root of 19828808 is about 270.6650637171.

The spelling of 19828808 in words is "nineteen million, eight hundred twenty-eight thousand, eight hundred eight".