2585720 has 32 divisors (see below), whose sum is σ = 5875200. Its totient is φ = 1024128.

The previous prime is 2585707. The next prime is 2585743. The reversal of 2585720 is 275852.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4826 + ... + 5334.

It is an arithmetic number, because the mean of its divisors is an integer number (183600).

2^2585720 is an apocalyptic number.

2585720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2585720 is an abundant number, since it is smaller than the sum of its proper divisors (3289480).

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

2585720 is a wasteful number, since it uses less digits than its factorization.

2585720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647 (or 643 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 2585720 is about 1608.0174128410. The cubic root of 2585720 is about 137.2546810347.

The spelling of 2585720 in words is "two million, five hundred eighty-five thousand, seven hundred twenty".