2180898 has 16 divisors (see below), whose sum is σ = 4846560. Its totient is φ = 726948.

The previous prime is 2180873. The next prime is 2180911. The reversal of 2180898 is 8980812.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20140 + ... + 20247.

It is an arithmetic number, because the mean of its divisors is an integer number (302910).

2^2180898 is an apocalyptic number.

2180898 is an abundant number, since it is smaller than the sum of its proper divisors (2665662).

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

2180898 is a wasteful number, since it uses less digits than its factorization.

2180898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40398 (or 40392 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The square root of 2180898 is about 1476.7863758852. The cubic root of 2180898 is about 129.6816272465.

The spelling of 2180898 in words is "two million, one hundred eighty thousand, eight hundred ninety-eight".