26405045 has 8 divisors (see below), whose sum is σ = 31888824. Its totient is φ = 20988864.

The previous prime is 26405033. The next prime is 26405047. The reversal of 26405045 is 54050462.

It can be written as a sum of positive squares in 4 ways, for example, as 47089 + 26357956 = 217^2 + 5134^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26405045 - 2⁸ = 26404789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26405047) 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 7 ways as a sum of consecutive naturals, for example, 16034 + ... + 17603.

It is an arithmetic number, because the mean of its divisors is an integer number (3986103).

Almost surely, 2^26405045 is an apocalyptic number.

It is an amenable number.

26405045 is a deficient number, since it is larger than the sum of its proper divisors (5483779).

26405045 is a wasteful number, since it uses less digits than its factorization.

26405045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33799.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 26405045 is about 5138.5839489104. The cubic root of 26405045 is about 297.7800766151.

The spelling of 26405045 in words is "twenty-six million, four hundred five thousand, forty-five".