4540320 has 96 divisors (see below), whose sum is σ = 15906240. Its totient is φ = 1209600.

The previous prime is 4540313. The next prime is 4540337. The reversal of 4540320 is 230454.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×4540320² = 41229011404800, which contains 22 as substring.

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

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 4540293 and 4540302.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3795 + ... + 4845.

It is an arithmetic number, because the mean of its divisors is an integer number (165690).

Almost surely, 2^4540320 is an apocalyptic number.

4540320 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 4540320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7953120).

4540320 is an abundant number, since it is smaller than the sum of its proper divisors (11365920).

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

4540320 is a wasteful number, since it uses less digits than its factorization.

4540320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075 (or 1061 counting only the distinct ones).

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

The square root of 4540320 is about 2130.8026656638. The cubic root of 4540320 is about 165.5879848455.

Adding to 4540320 its reverse (230454), we get a palindrome (4770774).

The spelling of 4540320 in words is "four million, five hundred forty thousand, three hundred twenty".