2539968 has 28 divisors (see below), whose sum is σ = 6720840. Its totient is φ = 846592.

The previous prime is 2539963. The next prime is 2539981. The reversal of 2539968 is 8699352.

It is a super-3 number, since 3×2539968³ = 49159333962608541696, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2539961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6423 + ... + 6806.

It is an arithmetic number, because the mean of its divisors is an integer number (240030).

2^2539968 is an apocalyptic number.

It is an amenable number.

2539968 is an abundant number, since it is smaller than the sum of its proper divisors (4180872).

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

2539968 is a wasteful number, since it uses less digits than its factorization.

2539968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13244 (or 13234 counting only the distinct ones).

The product of its digits is 116640, while the sum is 42.

The square root of 2539968 is about 1593.7277057264. The cubic root of 2539968 is about 136.4403259937.

It can be divided in two parts, 25 and 39968, that added together give a palindrome (39993).

The spelling of 2539968 in words is "two million, five hundred thirty-nine thousand, nine hundred sixty-eight".