26040401 has 4 divisors (see below), whose sum is σ = 26062500. Its totient is φ = 26018304.

The previous prime is 26040373. The next prime is 26040407. The reversal of 26040401 is 10404062.

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

It can be written as a sum of positive squares in 2 ways, for example, as 18284176 + 7756225 = 4276^2 + 2785^2 .

It is a cyclic number.

It is not a de Polignac number, because 26040401 - 2¹⁸ = 25778257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26040401.

It is not an unprimeable number, because it can be changed into a prime (26040407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9176 + ... + 11673.

It is an arithmetic number, because the mean of its divisors is an integer number (6515625).

Almost surely, 2^26040401 is an apocalyptic number.

It is an amenable number.

26040401 is a deficient number, since it is larger than the sum of its proper divisors (22099).

26040401 is a wasteful number, since it uses less digits than its factorization.

26040401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22098.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 26040401 is about 5102.9796197908. The cubic root of 26040401 is about 296.4029733323.

Adding to 26040401 its reverse (10404062), we get a palindrome (36444463).

The spelling of 26040401 in words is "twenty-six million, forty thousand, four hundred one".