2167660 has 48 divisors (see below), whose sum is σ = 5080320. Its totient is φ = 770240.

The previous prime is 2167643. The next prime is 2167661. The reversal of 2167660 is 667612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2167661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12897 + ... + 13063.

It is an arithmetic number, because the mean of its divisors is an integer number (105840).

2^2167660 is an apocalyptic number.

2167660 is a gapful number since it is divisible by the number (20) 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 2167660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2540160).

2167660 is an abundant number, since it is smaller than the sum of its proper divisors (2912660).

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

2167660 is a wasteful number, since it uses less digits than its factorization.

2167660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246 (or 244 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 2167660 is about 1472.2975242797. The cubic root of 2167660 is about 129.4187064013.

It can be divided in two parts, 21676 and 60, that added together give a triangular number (21736 = T₂₀₈).

The spelling of 2167660 in words is "two million, one hundred sixty-seven thousand, six hundred sixty".