2166466 has 16 divisors (see below), whose sum is σ = 3403008. Its totient is φ = 1033200.

The previous prime is 2166457. The next prime is 2166467. The reversal of 2166466 is 6646612.

It is a Harshad number since it is a multiple of its sum of digits (31).

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, 4936 + ... + 5356.

It is an arithmetic number, because the mean of its divisors is an integer number (212688).

2^2166466 is an apocalyptic number.

2166466 is a deficient number, since it is larger than the sum of its proper divisors (1236542).

2166466 is a wasteful number, since it uses less digits than its factorization.

2166466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537.

The product of its digits is 10368, while the sum is 31.

The square root of 2166466 is about 1471.8919797322. The cubic root of 2166466 is about 129.3949397102.

The spelling of 2166466 in words is "two million, one hundred sixty-six thousand, four hundred sixty-six".