26240613 has 16 divisors (see below), whose sum is σ = 40304640. Its totient is φ = 14875056.

The previous prime is 26240611. The next prime is 26240651. The reversal of 26240613 is 31604262.

It is not a de Polignac number, because 26240613 - 2¹ = 26240611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26240611) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2253 + ... + 7586.

It is an arithmetic number, because the mean of its divisors is an integer number (2519040).

Almost surely, 2^26240613 is an apocalyptic number.

It is an amenable number.

26240613 is a deficient number, since it is larger than the sum of its proper divisors (14064027).

26240613 is a wasteful number, since it uses less digits than its factorization.

26240613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9976.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 26240613 is about 5122.5592236694. The cubic root of 26240613 is about 297.1606676397.

Adding to 26240613 its reverse (31604262), we get a palindrome (57844875).

The spelling of 26240613 in words is "twenty-six million, two hundred forty thousand, six hundred thirteen".