26140939 has 4 divisors (see below), whose sum is σ = 28517400. Its totient is φ = 23764480.

The previous prime is 26140927. The next prime is 26140943. The reversal of 26140939 is 93904162.

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

It is a cyclic number.

It is not a de Polignac number, because 26140939 - 2¹⁹ = 25616651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26140909) 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, 1188214 + ... + 1188235.

It is an arithmetic number, because the mean of its divisors is an integer number (7129350).

Almost surely, 2^26140939 is an apocalyptic number.

26140939 is a deficient number, since it is larger than the sum of its proper divisors (2376461).

26140939 is a wasteful number, since it uses less digits than its factorization.

26140939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2376460.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 26140939 is about 5112.8210412648. The cubic root of 26140939 is about 296.7839389635.

The spelling of 26140939 in words is "twenty-six million, one hundred forty thousand, nine hundred thirty-nine".