800280 has 160 divisors (see below), whose sum is σ = 3049200. Its totient is φ = 186624.

The previous prime is 800243. The next prime is 800281. The reversal of 800280 is 82008.

800280 = T₂₃₅ + T₂₃₆ + ... + T₂₆₀.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800281) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 42111 + ... + 42129.

2⁸⁰⁰²⁸⁰ 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 800280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1524600).

800280 is an abundant number, since it is smaller than the sum of its proper divisors (2248920).

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

800280 is a wasteful number, since it uses less digits than its factorization.

800280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55 (or 42 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 800280 is about 894.5837020648. The cubic root of 800280 is about 92.8426057829.

Adding to 800280 its reverse (82008), we get a palindrome (882288).

The spelling of 800280 in words is "eight hundred thousand, two hundred eighty".