26940015 has 24 divisors (see below), whose sum is σ = 48728160. Its totient is φ = 13742784.

The previous prime is 26939999. The next prime is 26940029. The reversal of 26940015 is 51004962.

It is not a de Polignac number, because 26940015 - 2⁴ = 26939999 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11980 + ... + 14049.

It is an arithmetic number, because the mean of its divisors is an integer number (2030340).

Almost surely, 2^26940015 is an apocalyptic number.

26940015 is a deficient number, since it is larger than the sum of its proper divisors (21788145).

26940015 is a wasteful number, since it uses less digits than its factorization.

26940015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26063 (or 26060 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 26940015 is about 5190.3771539263. The cubic root of 26940015 is about 299.7776686032. Note that the first 3 decimals are identical.

Adding to 26940015 its reverse (51004962), we get a palindrome (77944977).

The spelling of 26940015 in words is "twenty-six million, nine hundred forty thousand, fifteen".