26303540 has 12 divisors (see below), whose sum is σ = 55237476. Its totient is φ = 10521408.

The previous prime is 26303533. The next prime is 26303561. The reversal of 26303540 is 4530362.

It can be written as a sum of positive squares in 2 ways, for example, as 7606564 + 18696976 = 2758^2 + 4324^2 .

It is a congruent number.

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, 657569 + ... + 657608.

It is an arithmetic number, because the mean of its divisors is an integer number (4603123).

Almost surely, 2^26303540 is an apocalyptic number.

26303540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26303540 is an abundant number, since it is smaller than the sum of its proper divisors (28933936).

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

26303540 is a wasteful number, since it uses less digits than its factorization.

26303540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315186 (or 1315184 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 26303540 is about 5128.6976904474. The cubic root of 26303540 is about 297.3980160287.

The spelling of 26303540 in words is "twenty-six million, three hundred three thousand, five hundred forty".