26438534 has 16 divisors (see below), whose sum is σ = 40817088. Its totient is φ = 12837312.

The previous prime is 26438527. The next prime is 26438561. The reversal of 26438534 is 43583462.

It is a junction number, because it is equal to n+sod(n) for n = 26438494 and 26438503.

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 7 ways as a sum of consecutive naturals, for example, 11852 + ... + 13904.

It is an arithmetic number, because the mean of its divisors is an integer number (2551068).

Almost surely, 2^26438534 is an apocalyptic number.

26438534 is a deficient number, since it is larger than the sum of its proper divisors (14378554).

26438534 is a wasteful number, since it uses less digits than its factorization.

26438534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2239.

The product of its digits is 69120, while the sum is 35.

The square root of 26438534 is about 5141.8414989185. The cubic root of 26438534 is about 297.9059129724.

The spelling of 26438534 in words is "twenty-six million, four hundred thirty-eight thousand, five hundred thirty-four".