19828844 has 48 divisors (see below), whose sum is σ = 41025600. Its totient is φ = 8211456.

The previous prime is 19828819. The next prime is 19828859. The reversal of 19828844 is 44882891.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 19828795 and 19828804.

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 15 ways as a sum of consecutive naturals, for example, 181862 + ... + 181970.

It is an arithmetic number, because the mean of its divisors is an integer number (854700).

Almost surely, 2^19828844 is an apocalyptic number.

19828844 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

19828844 is an abundant number, since it is smaller than the sum of its proper divisors (21196756).

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

19828844 is a wasteful number, since it uses less digits than its factorization.

19828844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282 (or 280 counting only the distinct ones).

The product of its digits is 147456, while the sum is 44.

The square root of 19828844 is about 4452.9590162048. The cubic root of 19828844 is about 270.6652275182.

The spelling of 19828844 in words is "nineteen million, eight hundred twenty-eight thousand, eight hundred forty-four".