26988320 has 24 divisors (see below), whose sum is σ = 63760284. Its totient is φ = 10795264.

The previous prime is 26988317. The next prime is 26988329. The reversal of 26988320 is 2388962.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 24641296 + 2347024 = 4964^2 + 1532^2 .

It is not an unprimeable number, because it can be changed into a prime (26988329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84179 + ... + 84498.

Almost surely, 2^26988320 is an apocalyptic number.

26988320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26988320 is an abundant number, since it is smaller than the sum of its proper divisors (36771964).

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

26988320 is a wasteful number, since it uses less digits than its factorization.

26988320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168692 (or 168684 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 26988320 is about 5195.0283926077. The cubic root of 26988320 is about 299.9567345014.

The spelling of 26988320 in words is "twenty-six million, nine hundred eighty-eight thousand, three hundred twenty".