4522320 has 120 divisors (see below), whose sum is σ = 16597152. Its totient is φ = 1094400.

The previous prime is 4522319. The next prime is 4522327. The reversal of 4522320 is 232254.

It is a tau number, because it is divible by the number of its divisors (120).

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

It is a junction number, because it is equal to n+sod(n) for n = 4522293 and 4522302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4522327) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7635 + ... + 8205.

Almost surely, 2^4522320 is an apocalyptic number.

4522320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4522320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8298576).

4522320 is an abundant number, since it is smaller than the sum of its proper divisors (12074832).

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

4522320 is a wasteful number, since it uses less digits than its factorization.

4522320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601 (or 592 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 4522320 is about 2126.5747106556. The cubic root of 4522320 is about 165.3688717107.

Adding to 4522320 its reverse (232254), we get a palindrome (4754574).

It can be divided in two parts, 452 and 2320, that added together give a palindrome (2772).

The spelling of 4522320 in words is "four million, five hundred twenty-two thousand, three hundred twenty".