2166464 has 14 divisors (see below), whose sum is σ = 4299204. Its totient is φ = 1083200.

The previous prime is 2166457. The next prime is 2166467. The reversal of 2166464 is 4646612.

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

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16862 + ... + 16989.

It is an arithmetic number, because the mean of its divisors is an integer number (307086).

2^2166464 is an apocalyptic number.

It is an amenable number.

2166464 is a deficient number, since it is larger than the sum of its proper divisors (2132740).

2166464 is an equidigital number, since it uses as much as digits as its factorization.

2166464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33863 (or 33853 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

The square root of 2166464 is about 1471.8913003344. The cubic root of 2166464 is about 129.3948998927.

The spelling of 2166464 in words is "two million, one hundred sixty-six thousand, four hundred sixty-four".