26171320 has 64 divisors (see below), whose sum is σ = 67852800. Its totient is φ = 8899200.

The previous prime is 26171297. The next prime is 26171323. The reversal of 26171320 is 2317162.

It is a junction number, because it is equal to n+sod(n) for n = 26171291 and 26171300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26171323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41971 + ... + 42589.

It is an arithmetic number, because the mean of its divisors is an integer number (1060200).

Almost surely, 2^26171320 is an apocalyptic number.

26171320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26171320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33926400).

26171320 is an abundant number, since it is smaller than the sum of its proper divisors (41681480).

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

26171320 is a wasteful number, since it uses less digits than its factorization.

26171320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788 (or 784 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 26171320 is about 5115.7912388994. The cubic root of 26171320 is about 296.8988685518.

Adding to 26171320 its reverse (2317162), we get a palindrome (28488482).

The spelling of 26171320 in words is "twenty-six million, one hundred seventy-one thousand, three hundred twenty".