26081280 has 144 divisors (see below), whose sum is σ = 90712440. Its totient is φ = 6930432.

The previous prime is 26081273. The next prime is 26081299. The reversal of 26081280 is 8218062.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

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, 92019 + ... + 92301.

Almost surely, 2^26081280 is an apocalyptic number.

26081280 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 26081280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45356220).

26081280 is an abundant number, since it is smaller than the sum of its proper divisors (64631160).

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

26081280 is a wasteful number, since it uses less digits than its factorization.

26081280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316 (or 293 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 26081280 is about 5106.9834540558. The cubic root of 26081280 is about 296.5579929921.

The spelling of 26081280 in words is "twenty-six million, eighty-one thousand, two hundred eighty".