26880330 has 64 divisors (see below), whose sum is σ = 68014080. Its totient is φ = 6785856.

The previous prime is 26880319. The next prime is 26880331. The reversal of 26880330 is 3308862.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (26880331) 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 31 ways as a sum of consecutive naturals, for example, 112351 + ... + 112589.

It is an arithmetic number, because the mean of its divisors is an integer number (1062720).

Almost surely, 2^26880330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26880330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34007040).

26880330 is an abundant number, since it is smaller than the sum of its proper divisors (41133750).

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

26880330 is a wasteful number, since it uses less digits than its factorization.

26880330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 26880330 is about 5184.6243836945. The cubic root of 26880330 is about 299.5561213408.

The spelling of 26880330 in words is "twenty-six million, eight hundred eighty thousand, three hundred thirty".