26381532 has 72 divisors (see below), whose sum is σ = 66785040. Its totient is φ = 8090880.

The previous prime is 26381521. The next prime is 26381533. The reversal of 26381532 is 23518362.

It is a self number, because there is not a number n which added to its sum of digits gives 26381532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26381533) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 613503 + ... + 613545.

It is an arithmetic number, because the mean of its divisors is an integer number (927570).

Almost surely, 2^26381532 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26381532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33392520).

26381532 is an abundant number, since it is smaller than the sum of its proper divisors (40403508).

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

26381532 is a wasteful number, since it uses less digits than its factorization.

26381532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 118 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 26381532 is about 5136.2955522439. The cubic root of 26381532 is about 297.6916619169.

Adding to 26381532 its reverse (23518362), we get a palindrome (49899894).

The spelling of 26381532 in words is "twenty-six million, three hundred eighty-one thousand, five hundred thirty-two".