2538720 has 144 divisors (see below), whose sum is σ = 9081072. Its totient is φ = 645120.

The previous prime is 2538713. The next prime is 2538733. The reversal of 2538720 is 278352.

2538720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59019 + ... + 59061.

It is an arithmetic number, because the mean of its divisors is an integer number (63063).

2^2538720 is an apocalyptic number.

2538720 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 2538720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4540536).

2538720 is an abundant number, since it is smaller than the sum of its proper divisors (6542352).

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

2538720 is a wasteful number, since it uses less digits than its factorization.

2538720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105 (or 94 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 2538720 is about 1593.3361227312. The cubic root of 2538720 is about 136.4179759191.

The spelling of 2538720 in words is "two million, five hundred thirty-eight thousand, seven hundred twenty".