26613280 has 48 divisors (see below), whose sum is σ = 64229760. Its totient is φ = 10415872.

The previous prime is 26613241. The next prime is 26613299. The reversal of 26613280 is 8231662.

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, 5751 + ... + 9289.

It is an arithmetic number, because the mean of its divisors is an integer number (1338120).

Almost surely, 2^26613280 is an apocalyptic number.

26613280 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 26613280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32114880).

26613280 is an abundant number, since it is smaller than the sum of its proper divisors (37616480).

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

26613280 is a wasteful number, since it uses less digits than its factorization.

26613280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3601 (or 3593 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 26613280 is about 5158.8060634220. The cubic root of 26613280 is about 298.5608105231.

The spelling of 26613280 in words is "twenty-six million, six hundred thirteen thousand, two hundred eighty".