26660241 has 6 divisors (see below), whose sum is σ = 38509250. Its totient is φ = 17773488.

The previous prime is 26660237. The next prime is 26660261. The reversal of 26660241 is 14206662.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 26224641 + 435600 = 5121^2 + 660^2 .

It is not a de Polignac number, because 26660241 - 2² = 26660237 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26660261) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1481116 + ... + 1481133.

Almost surely, 2^26660241 is an apocalyptic number.

It is an amenable number.

26660241 is a deficient number, since it is larger than the sum of its proper divisors (11849009).

26660241 is a wasteful number, since it uses less digits than its factorization.

26660241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2962255 (or 2962252 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 26660241 is about 5163.3555949595. The cubic root of 26660241 is about 298.7363178319.

The spelling of 26660241 in words is "twenty-six million, six hundred sixty thousand, two hundred forty-one".