818028 has 36 divisors (see below), whose sum is σ = 2137408. Its totient is φ = 263520.

The previous prime is 818021. The next prime is 818093. The reversal of 818028 is 820818.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 817992 and 818010.

It is not an unprimeable number, because it can be changed into a prime (818021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 750 + ... + 1482.

2⁸¹⁸⁰²⁸ 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 818028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1068704).

818028 is an abundant number, since it is smaller than the sum of its proper divisors (1319380).

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

818028 is a wasteful number, since it uses less digits than its factorization.

818028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774 (or 769 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 27.

The square root of 818028 is about 904.4490035375. The cubic root of 818028 is about 93.5239245973.

It can be divided in two parts, 81802 and 8, that added together give a triangular number (81810 = T₄₀₄).

The spelling of 818028 in words is "eight hundred eighteen thousand, twenty-eight".