2188324 has 12 divisors (see below), whose sum is σ = 3847900. Its totient is φ = 1088928.

The previous prime is 2188309. The next prime is 2188327. The reversal of 2188324 is 4238812.

It can be written as a sum of positive squares in 2 ways, for example, as 1345600 + 842724 = 1160^2 + 918^2 .

It is a d-powerful number, because it can be written as 2¹⁶ + 1 + 8² + 8⁴ + 3¹³ + 2¹⁹ + 4² .

It is a junction number, because it is equal to n+sod(n) for n = 2188292 and 2188301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2188327) 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 in 3 ways as a sum of consecutive naturals, for example, 279 + ... + 2110.

2^2188324 is an apocalyptic number.

It is an amenable number.

2188324 is a deficient number, since it is larger than the sum of its proper divisors (1659576).

2188324 is a wasteful number, since it uses less digits than its factorization.

2188324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2622 (or 2620 counting only the distinct ones).

The product of its digits is 3072, while the sum is 28.

The square root of 2188324 is about 1479.2984823895. The cubic root of 2188324 is about 129.8286499864.

The spelling of 2188324 in words is "two million, one hundred eighty-eight thousand, three hundred twenty-four".