19320928 has 48 divisors (see below), whose sum is σ = 41912640. Its totient is φ = 8694400.

The previous prime is 19320887. The next prime is 19320937. The reversal of 19320928 is 82902391.

It is a junction number, because it is equal to n+sod(n) for n = 19320893 and 19320902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45903 + ... + 46321.

It is an arithmetic number, because the mean of its divisors is an integer number (873180).

Almost surely, 2^19320928 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 19320928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20956320).

19320928 is an abundant number, since it is smaller than the sum of its proper divisors (22591712).

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

19320928 is a wasteful number, since it uses less digits than its factorization.

19320928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571 (or 563 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 19320928 is about 4395.5577575548. The cubic root of 19320928 is about 268.3341788056.

It can be divided in two parts, 1932092 and 8, that added together give a square (1932100 = 1390²).

The spelling of 19320928 in words is "nineteen million, three hundred twenty thousand, nine hundred twenty-eight".