180099800 has 48 divisors (see below), whose sum is σ = 419634600. Its totient is φ = 71884800.

The previous prime is 180099797. The next prime is 180099809. The reversal of 180099800 is 8990081.

It is a happy number.

180099800 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180099809) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 153215 + ... + 154385.

Almost surely, 2^180099800 is an apocalyptic number.

180099800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

180099800 is an abundant number, since it is smaller than the sum of its proper divisors (239534800).

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

180099800 is a wasteful number, since it uses less digits than its factorization.

180099800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1956 (or 1947 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 35.

The square root of 180099800 is about 13420.1266760042. The cubic root of 180099800 is about 564.7259484887.

The spelling of 180099800 in words is "one hundred eighty million, ninety-nine thousand, eight hundred".