4531220 has 24 divisors (see below), whose sum is σ = 9652608. Its totient is φ = 1786400.

The previous prime is 4531217. The next prime is 4531243. The reversal of 4531220 is 221354.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 176 + ... + 3015.

It is an arithmetic number, because the mean of its divisors is an integer number (402192).

Almost surely, 2^4531220 is an apocalyptic number.

It is an amenable number.

4531220 is an abundant number, since it is smaller than the sum of its proper divisors (5121388).

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

4531220 is a wasteful number, since it uses less digits than its factorization.

4531220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3271 (or 3269 counting only the distinct ones).

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

The square root of 4531220 is about 2128.6662490865. Note that the first 3 decimals coincide. The cubic root of 4531220 is about 165.4772835078.

Adding to 4531220 its reverse (221354), we get a palindrome (4752574).

The spelling of 4531220 in words is "four million, five hundred thirty-one thousand, two hundred twenty".