2438865 has 48 divisors (see below), whose sum is σ = 4979520. Its totient is φ = 1088640.

The previous prime is 2438861. The next prime is 2438881. The reversal of 2438865 is 5688342.

2438865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2438865 - 2² = 2438861 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is a Curzon number.

2438865 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2438861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6246 + ... + 6624.

It is an arithmetic number, because the mean of its divisors is an integer number (103740).

2^2438865 is an apocalyptic number.

It is an amenable number.

2438865 is an abundant number, since it is smaller than the sum of its proper divisors (2540655).

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

2438865 is a wasteful number, since it uses less digits than its factorization.

2438865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414 (or 411 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 2438865 is about 1561.6865882756. The cubic root of 2438865 is about 134.6054322731.

The spelling of 2438865 in words is "two million, four hundred thirty-eight thousand, eight hundred sixty-five".