19926928 has 40 divisors (see below), whose sum is σ = 45036800. Its totient is φ = 8537760.

The previous prime is 19926923. The next prime is 19926961. The reversal of 19926928 is 82962991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19926923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3673 + ... + 7303.

It is an arithmetic number, because the mean of its divisors is an integer number (1125920).

Almost surely, 2^19926928 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 19926928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22518400).

19926928 is an abundant number, since it is smaller than the sum of its proper divisors (25109872).

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

19926928 is an equidigital number, since it uses as much as digits as its factorization.

19926928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3660 (or 3640 counting only the distinct ones).

The product of its digits is 139968, while the sum is 46.

The square root of 19926928 is about 4463.9587811717. The cubic root of 19926928 is about 271.1107783646.

The spelling of 19926928 in words is "nineteen million, nine hundred twenty-six thousand, nine hundred twenty-eight".