2213504 has 16 divisors (see below), whose sum is σ = 4409970. Its totient is φ = 1106688.

The previous prime is 2213489. The next prime is 2213531. The reversal of 2213504 is 4053122.

It can be written as a sum of positive squares in only one way, i.e., 2190400 + 23104 = 1480^2 + 152^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 8519 + ... + 8774.

2^2213504 is an apocalyptic number.

It is an amenable number.

2213504 is a deficient number, since it is larger than the sum of its proper divisors (2196466).

2213504 is an equidigital number, since it uses as much as digits as its factorization.

2213504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17307 (or 17295 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2213504 is about 1487.7849306939. The cubic root of 2213504 is about 130.3247109518.

Adding to 2213504 its reverse (4053122), we get a palindrome (6266626).

The spelling of 2213504 in words is "two million, two hundred thirteen thousand, five hundred four".