26540320 has 24 divisors (see below), whose sum is σ = 62701884. Its totient is φ = 10616064.

The previous prime is 26540317. The next prime is 26540341. The reversal of 26540320 is 2304562.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 26501904 + 38416 = 5148^2 + 196^2 .

It is a junction number, because it is equal to n+sod(n) for n = 26540291 and 26540300.

It is an unprimeable number.

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, 82779 + ... + 83098.

Almost surely, 2^26540320 is an apocalyptic number.

26540320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26540320 is an abundant number, since it is smaller than the sum of its proper divisors (36161564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26540320 is a wasteful number, since it uses less digits than its factorization.

26540320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165892 (or 165884 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 26540320 is about 5151.7298065795. The cubic root of 26540320 is about 298.2877271470.

Adding to 26540320 its reverse (2304562), we get a palindrome (28844882).

The spelling of 26540320 in words is "twenty-six million, five hundred forty thousand, three hundred twenty".