26440545 has 16 divisors (see below), whose sum is σ = 42937920. Its totient is φ = 13890624.

The previous prime is 26440543. The next prime is 26440577. The reversal of 26440545 is 54504462.

It is not a de Polignac number, because 26440545 - 2¹ = 26440543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26440543) 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 15 ways as a sum of consecutive naturals, for example, 12150 + ... + 14159.

It is an arithmetic number, because the mean of its divisors is an integer number (2683620).

Almost surely, 2^26440545 is an apocalyptic number.

It is an amenable number.

26440545 is a deficient number, since it is larger than the sum of its proper divisors (16497375).

26440545 is a wasteful number, since it uses less digits than its factorization.

26440545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26384.

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 26440545 is about 5142.0370477078. The cubic root of 26440545 is about 297.9134660085.

The spelling of 26440545 in words is "twenty-six million, four hundred forty thousand, five hundred forty-five".