26650880 has 72 divisors (see below), whose sum is σ = 65342592. Its totient is φ = 10409984.

The previous prime is 26650879. The next prime is 26650909. The reversal of 26650880 is 8805662.

It is a self number, because there is not a number n which added to its sum of digits gives 26650880.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59939 + ... + 60381.

It is an arithmetic number, because the mean of its divisors is an integer number (907536).

Almost surely, 2^26650880 is an apocalyptic number.

26650880 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 26650880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32671296).

26650880 is an abundant number, since it is smaller than the sum of its proper divisors (38691712).

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

26650880 is an equidigital number, since it uses as much as digits as its factorization.

26650880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511 (or 497 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 26650880 is about 5162.4490312254. The cubic root of 26650880 is about 298.7013494303.

The spelling of 26650880 in words is "twenty-six million, six hundred fifty thousand, eight hundred eighty".