2166460 has 24 divisors (see below), whose sum is σ = 4586400. Its totient is φ = 859584.

The previous prime is 2166457. The next prime is 2166467. The reversal of 2166460 is 646612.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2166467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2617 + ... + 3343.

It is an arithmetic number, because the mean of its divisors is an integer number (191100).

2^2166460 is an apocalyptic number.

2166460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2166460 is an abundant number, since it is smaller than the sum of its proper divisors (2419940).

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

2166460 is a wasteful number, since it uses less digits than its factorization.

2166460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885 (or 883 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 2166460 is about 1471.8899415377. The cubic root of 2166460 is about 129.3948202576.

The spelling of 2166460 in words is "two million, one hundred sixty-six thousand, four hundred sixty".