2544320 has 28 divisors (see below), whose sum is σ = 6059424. Its totient is φ = 1017600.

The previous prime is 2544313. The next prime is 2544331. The reversal of 2544320 is 234452.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2544292 and 2544301.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3656 + ... + 4295.

It is an arithmetic number, because the mean of its divisors is an integer number (216408).

2^2544320 is an apocalyptic number.

2544320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2544320 is an abundant number, since it is smaller than the sum of its proper divisors (3515104).

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

2544320 is an equidigital number, since it uses as much as digits as its factorization.

2544320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7968 (or 7958 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 2544320 is about 1595.0924738083. The cubic root of 2544320 is about 136.5182074850.

Adding to 2544320 its reverse (234452), we get a palindrome (2778772).

The spelling of 2544320 in words is "two million, five hundred forty-four thousand, three hundred twenty".