26440101 has 14 divisors (see below), whose sum is σ = 39643110. Its totient is φ = 17626248.

The previous prime is 26440097. The next prime is 26440103. The reversal of 26440101 is 10104462.

26440101 is a `hidden beast` number, since 264 + 401 + 0 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 26316900 + 123201 = 5130^2 + 351^2 .

It is not a de Polignac number, because 26440101 - 2² = 26440097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26440103) 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 13 ways as a sum of consecutive naturals, for example, 17406 + ... + 18863.

Almost surely, 2^26440101 is an apocalyptic number.

It is an amenable number.

26440101 is a deficient number, since it is larger than the sum of its proper divisors (13203009).

26440101 is an frugal number, since it uses more digits than its factorization.

26440101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36287 (or 36272 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 26440101 is about 5141.9938739753. The cubic root of 26440101 is about 297.9117984393.

Adding to 26440101 its reverse (10104462), we get a palindrome (36544563).

The spelling of 26440101 in words is "twenty-six million, four hundred forty thousand, one hundred one".