1801180 has 12 divisors (see below), whose sum is σ = 3782520. Its totient is φ = 720464.

The previous prime is 1801117. The next prime is 1801187. The reversal of 1801180 is 811081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1801187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45010 + ... + 45049.

It is an arithmetic number, because the mean of its divisors is an integer number (315210).

2^1801180 is an apocalyptic number.

1801180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1801180 is an abundant number, since it is smaller than the sum of its proper divisors (1981340).

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

1801180 is a wasteful number, since it uses less digits than its factorization.

1801180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90068 (or 90066 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

The square root of 1801180 is about 1342.0804744873. The cubic root of 1801180 is about 121.6706155804.

Subtracting from 1801180 its reverse (811081), we obtain a palindrome (990099).

The spelling of 1801180 in words is "one million, eight hundred one thousand, one hundred eighty".