19828536 has 96 divisors (see below), whose sum is σ = 62148240. Its totient is φ = 5225472.

The previous prime is 19828531. The next prime is 19828591. The reversal of 19828536 is 63582891.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19828531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14640 + ... + 15936.

Almost surely, 2^19828536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19828536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31074120).

19828536 is an abundant number, since it is smaller than the sum of its proper divisors (42319704).

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

19828536 is a wasteful number, since it uses less digits than its factorization.

19828536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333 (or 1322 counting only the distinct ones).

The product of its digits is 103680, while the sum is 42.

The square root of 19828536 is about 4452.9244323253. The cubic root of 19828536 is about 270.6638261031.

The spelling of 19828536 in words is "nineteen million, eight hundred twenty-eight thousand, five hundred thirty-six".