2182864 has 10 divisors (see below), whose sum is σ = 4229330. Its totient is φ = 1091424.

The previous prime is 2182847. The next prime is 2182867. The reversal of 2182864 is 4682812.

It can be written as a sum of positive squares in only one way, i.e., 2016400 + 166464 = 1420^2 + 408^2 .

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2182867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68199 + ... + 68230.

It is an arithmetic number, because the mean of its divisors is an integer number (422933).

2^2182864 is an apocalyptic number.

It is an amenable number.

2182864 is a deficient number, since it is larger than the sum of its proper divisors (2046466).

2182864 is a wasteful number, since it uses less digits than its factorization.

2182864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136437 (or 136431 counting only the distinct ones).

The product of its digits is 6144, while the sum is 31.

The square root of 2182864 is about 1477.4518604679. The cubic root of 2182864 is about 129.7205832953.

The spelling of 2182864 in words is "two million, one hundred eighty-two thousand, eight hundred sixty-four".