2439872 has 28 divisors (see below), whose sum is σ = 4922520. Its totient is φ = 1199616.

The previous prime is 2439839. The next prime is 2439881. The reversal of 2439872 is 2789342.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4004 + ... + 4572.

2^2439872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2439872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2461260).

2439872 is an abundant number, since it is smaller than the sum of its proper divisors (2482648).

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

2439872 is an equidigital number, since it uses as much as digits as its factorization.

2439872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648 (or 638 counting only the distinct ones).

The product of its digits is 24192, while the sum is 35.

The square root of 2439872 is about 1562.0089628424. The cubic root of 2439872 is about 134.6239557829.

The spelling of 2439872 in words is "two million, four hundred thirty-nine thousand, eight hundred seventy-two".