2539040 has 48 divisors (see below), whose sum is σ = 6858432. Its totient is φ = 870144.

The previous prime is 2538983. The next prime is 2539049. The reversal of 2539040 is 409352.

It is a junction number, because it is equal to n+sod(n) for n = 2538997 and 2539015.

It is not an unprimeable number, because it can be changed into a prime (2539049) 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, 14 + ... + 2253.

It is an arithmetic number, because the mean of its divisors is an integer number (142884).

2^2539040 is an apocalyptic number.

2539040 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 2539040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3429216).

2539040 is an abundant number, since it is smaller than the sum of its proper divisors (4319392).

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

2539040 is a wasteful number, since it uses less digits than its factorization.

2539040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2289 (or 2281 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 2539040 is about 1593.4365378012. The cubic root of 2539040 is about 136.4237074056.

The spelling of 2539040 in words is "two million, five hundred thirty-nine thousand, forty".