801800180 has 24 divisors (see below), whose sum is σ = 1685069568. Its totient is φ = 320474528.

The previous prime is 801800179. The next prime is 801800183. The reversal of 801800180 is 81008108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (801800183) 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, 12677 + ... + 42003.

It is an arithmetic number, because the mean of its divisors is an integer number (70211232).

Almost surely, 2^801800180 is an apocalyptic number.

It is an amenable number.

801800180 is an abundant number, since it is smaller than the sum of its proper divisors (883269388).

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

801800180 is a wasteful number, since it uses less digits than its factorization.

801800180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30703 (or 30701 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 26.

The square root of 801800180 is about 28316.0763524892. The cubic root of 801800180 is about 929.0135530402.

Adding to 801800180 its reverse (81008108), we get a palindrome (882808288).

The spelling of 801800180 in words is "eight hundred one million, eight hundred thousand, one hundred eighty".