4531328 has 16 divisors (see below), whose sum is σ = 9027510. Its totient is φ = 2265600.

The previous prime is 4531327. The next prime is 4531339. The reversal of 4531328 is 8231354.

It can be written as a sum of positive squares in only one way, i.e., 4293184 + 238144 = 2072^2 + 488^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 4531297 and 4531306.

It is not an unprimeable number, because it can be changed into a prime (4531321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17573 + ... + 17828.

Almost surely, 2^4531328 is an apocalyptic number.

It is an amenable number.

4531328 is a deficient number, since it is larger than the sum of its proper divisors (4496182).

4531328 is an equidigital number, since it uses as much as digits as its factorization.

4531328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35415 (or 35403 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 4531328 is about 2128.6916169328. The cubic root of 4531328 is about 165.4785981945.

Adding to 4531328 its sum of digits (26), we get a palindrome (4531354).

The spelling of 4531328 in words is "four million, five hundred thirty-one thousand, three hundred twenty-eight".