26944139 has 4 divisors (see below), whose sum is σ = 26969256. Its totient is φ = 26919024.

The previous prime is 26944121. The next prime is 26944153. The reversal of 26944139 is 93144962.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26944139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26944189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10874 + ... + 13119.

It is an arithmetic number, because the mean of its divisors is an integer number (6742314).

Almost surely, 2^26944139 is an apocalyptic number.

26944139 is a deficient number, since it is larger than the sum of its proper divisors (25117).

26944139 is a wasteful number, since it uses less digits than its factorization.

26944139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25116.

The product of its digits is 46656, while the sum is 38.

The square root of 26944139 is about 5190.7744123589. The cubic root of 26944139 is about 299.7929645614.

The spelling of 26944139 in words is "twenty-six million, nine hundred forty-four thousand, one hundred thirty-nine".