2184664 has 8 divisors (see below), whose sum is σ = 4096260. Its totient is φ = 1092328.

The previous prime is 2184649. The next prime is 2184667. The reversal of 2184664 is 4664812.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2184667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136534 + ... + 136549.

2^2184664 is an apocalyptic number.

It is an amenable number.

2184664 is a deficient number, since it is larger than the sum of its proper divisors (1911596).

2184664 is a wasteful number, since it uses less digits than its factorization.

2184664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273089 (or 273085 counting only the distinct ones).

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

The square root of 2184664 is about 1478.0608918444. The cubic root of 2184664 is about 129.7562295684.

The spelling of 2184664 in words is "two million, one hundred eighty-four thousand, six hundred sixty-four".