26438985 has 12 divisors (see below), whose sum is σ = 45827652. Its totient is φ = 14100768.

The previous prime is 26438977. The next prime is 26439011. The reversal of 26438985 is 58983462.

26438985 is a `hidden beast` number, since 264 + 389 + 8 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 18688329 + 7750656 = 4323^2 + 2784^2 .

It is not a de Polignac number, because 26438985 - 2³ = 26438977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 587533 = 26438985 / (2 + 6 + 4 + 3 + 8 + 9 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 26438985.

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 11 ways as a sum of consecutive naturals, for example, 293722 + ... + 293811.

It is an arithmetic number, because the mean of its divisors is an integer number (3818971).

Almost surely, 2^26438985 is an apocalyptic number.

It is an amenable number.

26438985 is a deficient number, since it is larger than the sum of its proper divisors (19388667).

26438985 is a wasteful number, since it uses less digits than its factorization.

26438985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587544 (or 587541 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 26438985 is about 5141.8853546146. The cubic root of 26438985 is about 297.9076068990.

It can be divided in two parts, 2643 and 8985, that added together give a triangular number (11628 = T₁₅₂).

The spelling of 26438985 in words is "twenty-six million, four hundred thirty-eight thousand, nine hundred eighty-five".