2166484 has 12 divisors (see below), whose sum is σ = 3826900. Its totient is φ = 1073088.

The previous prime is 2166467. The next prime is 2166509. The reversal of 2166484 is 4846612.

It can be written as a sum of positive squares in 2 ways, for example, as 956484 + 1210000 = 978^2 + 1100^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2049 + ... + 2920.

2^2166484 is an apocalyptic number.

It is an amenable number.

2166484 is a deficient number, since it is larger than the sum of its proper divisors (1660416).

2166484 is a wasteful number, since it uses less digits than its factorization.

2166484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5082 (or 5080 counting only the distinct ones).

The product of its digits is 9216, while the sum is 31.

The square root of 2166484 is about 1471.8980942987. The cubic root of 2166484 is about 129.3952980669.

The spelling of 2166484 in words is "two million, one hundred sixty-six thousand, four hundred eighty-four".