19822912 has 28 divisors (see below), whose sum is σ = 39698676. Its totient is φ = 9820160.

The previous prime is 19822897. The next prime is 19822949. The reversal of 19822912 is 21922891.

It can be written as a sum of positive squares in 2 ways, for example, as 2383936 + 17438976 = 1544^2 + 4176^2 .

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 3 ways as a sum of consecutive naturals, for example, 5862 + ... + 8602.

Almost surely, 2^19822912 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 19822912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19849338).

19822912 is an abundant number, since it is smaller than the sum of its proper divisors (19875764).

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

19822912 is a wasteful number, since it uses less digits than its factorization.

19822912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2866 (or 2856 counting only the distinct ones).

The product of its digits is 5184, while the sum is 34.

The square root of 19822912 is about 4452.2928924319. The cubic root of 19822912 is about 270.6382340759.

The spelling of 19822912 in words is "nineteen million, eight hundred twenty-two thousand, nine hundred twelve".