26315630 has 16 divisors (see below), whose sum is σ = 51674544. Its totient is φ = 9569280.

The previous prime is 26315617. The next prime is 26315633. The reversal of 26315630 is 3651362.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 26315630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26315633) 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 7 ways as a sum of consecutive naturals, for example, 119507 + ... + 119726.

It is an arithmetic number, because the mean of its divisors is an integer number (3229659).

Almost surely, 2^26315630 is an apocalyptic number.

26315630 is a deficient number, since it is larger than the sum of its proper divisors (25358914).

26315630 is a wasteful number, since it uses less digits than its factorization.

26315630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239251.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 26315630 is about 5129.8762168302. The cubic root of 26315630 is about 297.4435737911.

Adding to 26315630 its reverse (3651362), we get a palindrome (29966992).

The spelling of 26315630 in words is "twenty-six million, three hundred fifteen thousand, six hundred thirty".