2106180 has 36 divisors (see below), whose sum is σ = 6389292. Its totient is φ = 561600.

The previous prime is 2106173. The next prime is 2106191. The reversal of 2106180 is 816012.

It can be written as a sum of positive squares in 2 ways, for example, as 1218816 + 887364 = 1104^2 + 942^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5671 + ... + 6030.

2^2106180 is an apocalyptic number.

2106180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2106180 is an abundant number, since it is smaller than the sum of its proper divisors (4283112).

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

2106180 is a wasteful number, since it uses less digits than its factorization.

2106180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11716 (or 11711 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 2106180 is about 1451.2684107359. The cubic root of 2106180 is about 128.1834121919.

The spelling of 2106180 in words is "two million, one hundred six thousand, one hundred eighty".