2438681 has 12 divisors (see below), whose sum is σ = 2863908. Its totient is φ = 2070432.

The previous prime is 2438671. The next prime is 2438693. The reversal of 2438681 is 1868342.

It can be written as a sum of positive squares in 2 ways, for example, as 379456 + 2059225 = 616^2 + 1435^2 .

It is not a de Polignac number, because 2438681 - 2⁶ = 2438617 is a prime.

It is a super-2 number, since 2×2438681² = 11894330039522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2438671) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7535 + ... + 7851.

It is an arithmetic number, because the mean of its divisors is an integer number (238659).

2^2438681 is an apocalyptic number.

It is an amenable number.

2438681 is a deficient number, since it is larger than the sum of its proper divisors (425227).

2438681 is a wasteful number, since it uses less digits than its factorization.

2438681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488 (or 481 counting only the distinct ones).

The product of its digits is 9216, while the sum is 32.

The square root of 2438681 is about 1561.6276764965. The cubic root of 2438681 is about 134.6020470888.

The spelling of 2438681 in words is "two million, four hundred thirty-eight thousand, six hundred eighty-one".