4320544 has 12 divisors (see below), whose sum is σ = 8506134. Its totient is φ = 2160256.

The previous prime is 4320529. The next prime is 4320559. The reversal of 4320544 is 4450234.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4320529) and next prime (4320559).

It can be written as a sum of positive squares in only one way, i.e., 3196944 + 1123600 = 1788^2 + 1060^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67477 + ... + 67540.

Almost surely, 2^4320544 is an apocalyptic number.

It is an amenable number.

4320544 is a deficient number, since it is larger than the sum of its proper divisors (4185590).

4320544 is a wasteful number, since it uses less digits than its factorization.

4320544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135027 (or 135019 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 4320544 is about 2078.5918310241. The cubic root of 4320544 is about 162.8718930198.

Adding to 4320544 its reverse (4450234), we get a palindrome (8770778).

The spelling of 4320544 in words is "four million, three hundred twenty thousand, five hundred forty-four".