2540280 has 32 divisors (see below), whose sum is σ = 7621200. Its totient is φ = 677376.

The previous prime is 2540269. The next prime is 2540323. The reversal of 2540280 is 820452.

2540280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 10465 + ... + 10704.

2^2540280 is an apocalyptic number.

2540280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2540280 is an abundant number, since it is smaller than the sum of its proper divisors (5080920).

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

2540280 is a wasteful number, since it uses less digits than its factorization.

2540280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21183 (or 21179 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 2540280 is about 1593.8255864429. The cubic root of 2540280 is about 136.4459123684.

The spelling of 2540280 in words is "two million, five hundred forty thousand, two hundred eighty".