26881320 has 32 divisors (see below), whose sum is σ = 80644320. Its totient is φ = 7168320.

The previous prime is 26881307. The next prime is 26881339. The reversal of 26881320 is 2318862.

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

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 111886 + ... + 112125.

It is an arithmetic number, because the mean of its divisors is an integer number (2520135).

Almost surely, 2^26881320 is an apocalyptic number.

26881320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26881320 is an abundant number, since it is smaller than the sum of its proper divisors (53763000).

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

26881320 is a wasteful number, since it uses less digits than its factorization.

26881320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224025 (or 224021 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 26881320 is about 5184.7198574272. The cubic root of 26881320 is about 299.5597988368.

The spelling of 26881320 in words is "twenty-six million, eight hundred eighty-one thousand, three hundred twenty".