26261630 has 32 divisors (see below), whose sum is σ = 49641984. Its totient is φ = 9983776.

The previous prime is 26261623. The next prime is 26261633. The reversal of 26261630 is 3616262.

It is a self number, because there is not a number n which added to its sum of digits gives 26261630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26261633) 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, 51959 + ... + 52461.

It is an arithmetic number, because the mean of its divisors is an integer number (1551312).

Almost surely, 2^26261630 is an apocalyptic number.

26261630 is a deficient number, since it is larger than the sum of its proper divisors (23380354).

26261630 is a wasteful number, since it uses less digits than its factorization.

26261630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 26261630 is about 5124.6102290808. The cubic root of 26261630 is about 297.2399818323.

Adding to 26261630 its reverse (3616262), we get a palindrome (29877892).

The spelling of 26261630 in words is "twenty-six million, two hundred sixty-one thousand, six hundred thirty".