2543120 has 40 divisors (see below), whose sum is σ = 5999616. Its totient is φ = 1002368.

The previous prime is 2543117. The next prime is 2543129. The reversal of 2543120 is 213452.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (2543129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6449 + ... + 6831.

2^2543120 is an apocalyptic number.

2543120 is a gapful number since it is divisible by the number (20) 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 2543120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2999808).

2543120 is an abundant number, since it is smaller than the sum of its proper divisors (3456496).

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

2543120 is a wasteful number, since it uses less digits than its factorization.

2543120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479 (or 473 counting only the distinct ones).

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

The square root of 2543120 is about 1594.7162757055. The cubic root of 2543120 is about 136.4967416827.

Adding to 2543120 its reverse (213452), we get a palindrome (2756572).

The spelling of 2543120 in words is "two million, five hundred forty-three thousand, one hundred twenty".