180900940 has 24 divisors (see below), whose sum is σ = 414428112. Its totient is φ = 65782080.

The previous prime is 180900883. The next prime is 180900943. The reversal of 180900940 is 49009081.

It is not an unprimeable number, because it can be changed into a prime (180900943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 410919 + ... + 411358.

It is an arithmetic number, because the mean of its divisors is an integer number (17267838).

Almost surely, 2^180900940 is an apocalyptic number.

180900940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

180900940 is an abundant number, since it is smaller than the sum of its proper divisors (233527172).

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

180900940 is a wasteful number, since it uses less digits than its factorization.

180900940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822297 (or 822295 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 180900940 is about 13449.9420073099. The cubic root of 180900940 is about 565.5620689018.

The spelling of 180900940 in words is "one hundred eighty million, nine hundred thousand, nine hundred forty".