2141660 has 24 divisors (see below), whose sum is σ = 4762800. Its totient is φ = 806144.

The previous prime is 2141653. The next prime is 2141669. The reversal of 2141660 is 661412.

It is a happy number.

2141660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2141669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2810 + ... + 3489.

It is an arithmetic number, because the mean of its divisors is an integer number (198450).

2^2141660 is an apocalyptic number.

2141660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2141660 is an abundant number, since it is smaller than the sum of its proper divisors (2621140).

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

2141660 is a wasteful number, since it uses less digits than its factorization.

2141660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6325 (or 6323 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 2141660 is about 1463.4411501663. The cubic root of 2141660 is about 128.8991861020.

The spelling of 2141660 in words is "two million, one hundred forty-one thousand, six hundred sixty".