2544020 has 24 divisors (see below), whose sum is σ = 5388768. Its totient is φ = 1008800.

The previous prime is 2544011. The next prime is 2544029. The reversal of 2544020 is 204452.

It is an interprime number because it is at equal distance from previous prime (2544011) and next prime (2544029).

It is a self number, because there is not a number n which added to its sum of digits gives 2544020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2544029) 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, 2135 + ... + 3105.

It is an arithmetic number, because the mean of its divisors is an integer number (224532).

2^2544020 is an apocalyptic number.

2544020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2544020 is an abundant number, since it is smaller than the sum of its proper divisors (2844748).

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

2544020 is a wasteful number, since it uses less digits than its factorization.

2544020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111 (or 1109 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 2544020 is about 1594.9984326011. The cubic root of 2544020 is about 136.5128416673.

Adding to 2544020 its reverse (204452), we get a palindrome (2748472).

The spelling of 2544020 in words is "two million, five hundred forty-four thousand, twenty".