26571328 has 84 divisors (see below), whose sum is σ = 63268860. Its totient is φ = 11031552.

The previous prime is 26571313. The next prime is 26571331. The reversal of 26571328 is 82317562.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 24285184 + 2286144 = 4928^2 + 1512^2 .

It is a junction number, because it is equal to n+sod(n) for n = 26571293 and 26571302.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 115918 + ... + 116146.

Almost surely, 2^26571328 is an apocalyptic number.

26571328 is a gapful number since it is divisible by the number (28) 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 26571328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31634430).

26571328 is an abundant number, since it is smaller than the sum of its proper divisors (36697532).

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

26571328 is a wasteful number, since it uses less digits than its factorization.

26571328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292 (or 275 counting only the distinct ones).

The product of its digits is 20160, while the sum is 34.

The square root of 26571328 is about 5154.7384026738. The cubic root of 26571328 is about 298.4038486567.

It can be divided in two parts, 2657 and 1328, that multiplied together give a triangular number (3528496 = T₂₆₅₆).

The spelling of 26571328 in words is "twenty-six million, five hundred seventy-one thousand, three hundred twenty-eight".