4544320 has 56 divisors (see below), whose sum is σ = 11814048. Its totient is φ = 1651200.

The previous prime is 4544311. The next prime is 4544339. The reversal of 4544320 is 234454.

It is a happy number.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 4544291 and 4544300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2875 + ... + 4165.

Almost surely, 2^4544320 is an apocalyptic number.

4544320 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 4544320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5907024).

4544320 is an abundant number, since it is smaller than the sum of its proper divisors (7269728).

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

4544320 is a wasteful number, since it uses less digits than its factorization.

4544320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319 (or 1309 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 4544320 is about 2131.7410724570. The cubic root of 4544320 is about 165.6365979774.

Adding to 4544320 its reverse (234454), we get a palindrome (4778774).

It can be divided in two parts, 454 and 4320, that added together give a palindrome (4774).

The spelling of 4544320 in words is "four million, five hundred forty-four thousand, three hundred twenty".