2539880 has 64 divisors (see below), whose sum is σ = 6704640. Its totient is φ = 847872.

The previous prime is 2539871. The next prime is 2539951. The reversal of 2539880 is 889352.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 2539880.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13064 + ... + 13256.

It is an arithmetic number, because the mean of its divisors is an integer number (104760).

2^2539880 is an apocalyptic number.

2539880 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 2539880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3352320).

2539880 is an abundant number, since it is smaller than the sum of its proper divisors (4164760).

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

2539880 is a wasteful number, since it uses less digits than its factorization.

2539880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258 (or 254 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 2539880 is about 1593.7000972580. The cubic root of 2539880 is about 136.4387502668.

The spelling of 2539880 in words is "two million, five hundred thirty-nine thousand, eight hundred eighty".