810128 has 20 divisors (see below), whose sum is σ = 1712688. Its totient is φ = 368160.

The previous prime is 810109. The next prime is 810137. The reversal of 810128 is 821018.

It is a zygodrome in base 15.

It is an unprimeable number.

810128 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2126 + ... + 2477.

2⁸¹⁰¹²⁸ is an apocalyptic number.

810128 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

810128 is an abundant number, since it is smaller than the sum of its proper divisors (902560).

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

810128 is a wasteful number, since it uses less digits than its factorization.

810128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4622 (or 4616 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 810128 is about 900.0711083020. The cubic root of 810128 is about 93.2218851146.

Subtracting from 810128 its product of nonzero digits (128), we obtain a 4-th power (810000 = 30⁴).

The spelling of 810128 in words is "eight hundred ten thousand, one hundred twenty-eight".