2182816 has 12 divisors (see below), whose sum is σ = 4297482. Its totient is φ = 1091392.

The previous prime is 2182813. The next prime is 2182819. The reversal of 2182816 is 6182812.

It is an interprime number because it is at equal distance from previous prime (2182813) and next prime (2182819).

It can be written as a sum of positive squares in only one way, i.e., 1971216 + 211600 = 1404^2 + 460^2 .

It is not an unprimeable number, because it can be changed into a prime (2182811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34075 + ... + 34138.

2^2182816 is an apocalyptic number.

It is an amenable number.

2182816 is a deficient number, since it is larger than the sum of its proper divisors (2114666).

2182816 is an equidigital number, since it uses as much as digits as its factorization.

2182816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68223 (or 68215 counting only the distinct ones).

The product of its digits is 1536, while the sum is 28.

The square root of 2182816 is about 1477.4356161945. The cubic root of 2182816 is about 129.7196324599.

The spelling of 2182816 in words is "two million, one hundred eighty-two thousand, eight hundred sixteen".