2163284 has 24 divisors (see below), whose sum is σ = 4150440. Its totient is φ = 982016.

The previous prime is 2163281. The next prime is 2163289. The reversal of 2163284 is 4823612.

It can be written as a sum of positive squares in 4 ways, for example, as 394384 + 1768900 = 628^2 + 1330^2 .

It is a d-powerful number, because it can be written as 2⁷ + 1 + 6³ + 3⁵ + 2²¹ + 8 + 4⁸ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2163281) 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, 1424 + ... + 2520.

It is an arithmetic number, because the mean of its divisors is an integer number (172935).

2^2163284 is an apocalyptic number.

It is an amenable number.

2163284 is a deficient number, since it is larger than the sum of its proper divisors (1987156).

2163284 is a wasteful number, since it uses less digits than its factorization.

2163284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1147 (or 1145 counting only the distinct ones).

The product of its digits is 2304, while the sum is 26.

The square root of 2163284 is about 1470.8106608262. The cubic root of 2163284 is about 129.3315590031.

Adding to 2163284 its reverse (4823612), we get a palindrome (6986896).

The spelling of 2163284 in words is "two million, one hundred sixty-three thousand, two hundred eighty-four".