180008020 has 24 divisors (see below), whose sum is σ = 378386568. Its totient is φ = 71932800.

The previous prime is 180008009. The next prime is 180008021. The reversal of 180008020 is 20800081.

It is a happy number.

180008020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 90554256 + 89453764 = 9516^2 + 9458^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180008021) 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, 19810 + ... + 27430.

It is an arithmetic number, because the mean of its divisors is an integer number (15766107).

Almost surely, 2^180008020 is an apocalyptic number.

180008020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

180008020 is an abundant number, since it is smaller than the sum of its proper divisors (198378548).

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

180008020 is a wasteful number, since it uses less digits than its factorization.

180008020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8811 (or 8809 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 180008020 is about 13416.7067494225. The cubic root of 180008020 is about 564.6300028807.

The spelling of 180008020 in words is "one hundred eighty million, eight thousand, twenty".