2543020 has 24 divisors (see below), whose sum is σ = 5466384. Its totient is φ = 993216.

The previous prime is 2542999. The next prime is 2543027. The reversal of 2543020 is 203452.

2543020 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2542985 and 2543003.

It is not an unprimeable number, because it can be changed into a prime (2543027) 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, 619 + ... + 2338.

It is an arithmetic number, because the mean of its divisors is an integer number (227766).

2^2543020 is an apocalyptic number.

2543020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2543020 is an abundant number, since it is smaller than the sum of its proper divisors (2923364).

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

2543020 is a wasteful number, since it uses less digits than its factorization.

2543020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3009 (or 3007 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 2543020 is about 1594.6849218576. The cubic root of 2543020 is about 136.4949525611.

Adding to 2543020 its reverse (203452), we get a palindrome (2746472).

The spelling of 2543020 in words is "two million, five hundred forty-three thousand, twenty".