4513444 has 48 divisors (see below), whose sum is σ = 9137520. Its totient is φ = 1935360.

The previous prime is 4513433. The next prime is 4513447. The reversal of 4513444 is 4443154.

It can be written as a sum of positive squares in 8 ways, for example, as 788544 + 3724900 = 888^2 + 1930^2 .

It is a super-2 number, since 2×4513444² = 40742353482272, which contains 22 as substring.

Its product of digits (3840) is a multiple of the sum of its prime factors (160).

It is not an unprimeable number, because it can be changed into a prime (4513447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61792 + ... + 61864.

It is an arithmetic number, because the mean of its divisors is an integer number (190365).

Almost surely, 2^4513444 is an apocalyptic number.

It is an amenable number.

4513444 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

4513444 is a wasteful number, since it uses less digits than its factorization.

4513444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160 (or 158 counting only the distinct ones).

The product of its digits is 3840, while the sum is 25.

The square root of 4513444 is about 2124.4867615497. The cubic root of 4513444 is about 165.2606105047.

Adding to 4513444 its reverse (4443154), we get a palindrome (8956598).

The spelling of 4513444 in words is "four million, five hundred thirteen thousand, four hundred forty-four".