26009280 has 168 divisors, whose sum is σ = 97712784. Its totient is φ = 6297600.

The previous prime is 26009267. The next prime is 26009299. The reversal of 26009280 is 8290062.

It is a super-2 number, since 2×26009280² = 1352965292236800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31270 + ... + 32090.

Almost surely, 2^26009280 is an apocalyptic number.

26009280 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 26009280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48856392).

26009280 is an abundant number, since it is smaller than the sum of its proper divisors (71703504).

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

26009280 is a wasteful number, since it uses less digits than its factorization.

26009280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855 (or 842 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 26009280 is about 5099.9294112762. The cubic root of 26009280 is about 296.2848487553.

The spelling of 26009280 in words is "twenty-six million, nine thousand, two hundred eighty".