19944828 has 36 divisors (see below), whose sum is σ = 51174760. Its totient is φ = 6548256.

The previous prime is 19944797. The next prime is 19944829. The reversal of 19944828 is 82844991.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19944829) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1723 + ... + 6546.

Almost surely, 2^19944828 is an apocalyptic number.

19944828 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

19944828 is an abundant number, since it is smaller than the sum of its proper divisors (31229932).

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

19944828 is a wasteful number, since it uses less digits than its factorization.

19944828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8346 (or 8341 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 19944828 is about 4465.9632779502. The cubic root of 19944828 is about 271.1919320439.

The spelling of 19944828 in words is "nineteen million, nine hundred forty-four thousand, eight hundred twenty-eight".