2539872 has 36 divisors (see below), whose sum is σ = 7223580. Its totient is φ = 846528.

The previous prime is 2539871. The next prime is 2539951. The reversal of 2539872 is 2789352.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2539871) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4122 + ... + 4697.

It is an arithmetic number, because the mean of its divisors is an integer number (200655).

2^2539872 is an apocalyptic number.

It is an amenable number.

2539872 is an abundant number, since it is smaller than the sum of its proper divisors (4683708).

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

2539872 is a wasteful number, since it uses less digits than its factorization.

2539872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8835 (or 8824 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 2539872 is about 1593.6975873735. The cubic root of 2539872 is about 136.4386070171.

The spelling of 2539872 in words is "two million, five hundred thirty-nine thousand, eight hundred seventy-two".