26401445 has 12 divisors (see below), whose sum is σ = 36854604. Its totient is φ = 18103680.

The previous prime is 26401423. The next prime is 26401477. The reversal of 26401445 is 54410462.

It can be written as a sum of positive squares in 2 ways, for example, as 9746884 + 16654561 = 3122^2 + 4081^2 .

It is not a de Polignac number, because 26401445 - 2⁶ = 26401381 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 53636 + ... + 54125.

It is an arithmetic number, because the mean of its divisors is an integer number (3071217).

Almost surely, 2^26401445 is an apocalyptic number.

It is an amenable number.

26401445 is a deficient number, since it is larger than the sum of its proper divisors (10453159).

26401445 is a wasteful number, since it uses less digits than its factorization.

26401445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107780 (or 107773 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 26401445 is about 5138.2336459137. The cubic root of 26401445 is about 297.7665431281.

The spelling of 26401445 in words is "twenty-six million, four hundred one thousand, four hundred forty-five".