2180733900 has 72 divisors (see below), whose sum is σ = 6314585424. Its totient is φ = 581068800.

The previous prime is 2180733899. The next prime is 2180733923. The reversal of 2180733900 is 93370812.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 559960 + ... + 563840.

Almost surely, 2^2180733900 is an apocalyptic number.

2180733900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2180733900 is an abundant number, since it is smaller than the sum of its proper divisors (4133851524).

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

2180733900 is a wasteful number, since it uses less digits than its factorization.

2180733900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5771 (or 5764 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 2180733900 is about 46698.3286638826. The cubic root of 2180733900 is about 1296.7837456669.

The spelling of 2180733900 in words is "two billion, one hundred eighty million, seven hundred thirty-three thousand, nine hundred".