2438645 has 16 divisors (see below), whose sum is σ = 3231360. Its totient is φ = 1752000.

The previous prime is 2438629. The next prime is 2438671. The reversal of 2438645 is 5468342.

It is not a de Polignac number, because 2438645 - 2⁴ = 2438629 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5336 + ... + 5774.

It is an arithmetic number, because the mean of its divisors is an integer number (201960).

2^2438645 is an apocalyptic number.

It is an amenable number.

2438645 is a deficient number, since it is larger than the sum of its proper divisors (792715).

2438645 is a wasteful number, since it uses less digits than its factorization.

2438645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556.

The product of its digits is 23040, while the sum is 32.

The square root of 2438645 is about 1561.6161500189. The cubic root of 2438645 is about 134.6013847503.

It can be divided in two parts, 243 and 8645, that added together give a palindrome (8888).

The spelling of 2438645 in words is "two million, four hundred thirty-eight thousand, six hundred forty-five".