4521330 has 48 divisors (see below), whose sum is σ = 12826944. Its totient is φ = 1095840.

The previous prime is 4521313. The next prime is 4521331. The reversal of 4521330 is 331254.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (4521331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1294 + ... + 3273.

It is an arithmetic number, because the mean of its divisors is an integer number (267228).

Almost surely, 2^4521330 is an apocalyptic number.

4521330 is an abundant number, since it is smaller than the sum of its proper divisors (8305614).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4521330 is a wasteful number, since it uses less digits than its factorization.

4521330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4591 (or 4588 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 4521330 is about 2126.3419292296. The cubic root of 4521330 is about 165.3568036327.

Adding to 4521330 its reverse (331254), we get a palindrome (4852584).

It can be divided in two parts, 4521 and 330, that added together give a triangular number (4851 = T₉₈).

The spelling of 4521330 in words is "four million, five hundred twenty-one thousand, three hundred thirty".