180420810 has 16 divisors (see below), whose sum is σ = 433010016. Its totient is φ = 48112208.

The previous prime is 180420781. The next prime is 180420811. The reversal of 180420810 is 18024081.

It is a super-2 number, since 2×180420810² = 65103337362112200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (180420811) 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, 3006984 + ... + 3007043.

It is an arithmetic number, because the mean of its divisors is an integer number (27063126).

Almost surely, 2^180420810 is an apocalyptic number.

180420810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

180420810 is an abundant number, since it is smaller than the sum of its proper divisors (252589206).

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

180420810 is a wasteful number, since it uses less digits than its factorization.

180420810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6014037.

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 180420810 is about 13432.0813725945. The cubic root of 180420810 is about 565.0612719725.

Adding to 180420810 its reverse (18024081), we get a palindrome (198444891).

The spelling of 180420810 in words is "one hundred eighty million, four hundred twenty thousand, eight hundred ten".