1928128 has 28 divisors (see below), whose sum is σ = 3913632. Its totient is φ = 942080.

The previous prime is 1928099. The next prime is 1928141. The reversal of 1928128 is 8218291.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1928128.

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, 2688 + ... + 3328.

2^1928128 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 1928128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1956816).

1928128 is an abundant number, since it is smaller than the sum of its proper divisors (1985504).

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

1928128 is an equidigital number, since it uses as much as digits as its factorization.

1928128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700 (or 690 counting only the distinct ones).

The product of its digits is 2304, while the sum is 31.

The square root of 1928128 is about 1388.5704879479. The cubic root of 1928128 is about 124.4644393420.

The spelling of 1928128 in words is "one million, nine hundred twenty-eight thousand, one hundred twenty-eight".