180530200 has 48 divisors (see below), whose sum is σ = 420966360. Its totient is φ = 72000000.

The previous prime is 180530131. The next prime is 180530237. The reversal of 180530200 is 2035081.

It is a happy number.

It is a super-2 number, since 2×180530200² = 65182306224080000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 79075 + ... + 81325.

Almost surely, 2^180530200 is an apocalyptic number.

180530200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 180530200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210483180).

180530200 is an abundant number, since it is smaller than the sum of its proper divisors (240436160).

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

180530200 is a wasteful number, since it uses less digits than its factorization.

180530200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2668 (or 2659 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 180530200 is about 13436.1527231570. The cubic root of 180530200 is about 565.1754486843.

Adding to 180530200 its reverse (2035081), we get a palindrome (182565281).

The spelling of 180530200 in words is "one hundred eighty million, five hundred thirty thousand, two hundred".