26880480 has 144 divisors (see below), whose sum is σ = 100127664. Its totient is φ = 6512640.

The previous prime is 26880479. The next prime is 26880481. The reversal of 26880480 is 8408862.

It is an interprime number because it is at equal distance from previous prime (26880479) and next prime (26880481).

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

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26880481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14992 + ... + 16688.

It is an arithmetic number, because the mean of its divisors is an integer number (695331).

Almost surely, 2^26880480 is an apocalyptic number.

26880480 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 26880480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50063832).

26880480 is an abundant number, since it is smaller than the sum of its proper divisors (73247184).

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

26880480 is a wasteful number, since it uses less digits than its factorization.

26880480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1729 (or 1718 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 26880480 is about 5184.6388495246. The cubic root of 26880480 is about 299.5566785430.

The spelling of 26880480 in words is "twenty-six million, eight hundred eighty thousand, four hundred eighty".