26861880 has 32 divisors (see below), whose sum is σ = 80586000. Its totient is φ = 7163136.

The previous prime is 26861867. The next prime is 26861881. The reversal of 26861880 is 8816862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26861881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111805 + ... + 112044.

Almost surely, 2^26861880 is an apocalyptic number.

26861880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26861880 is an abundant number, since it is smaller than the sum of its proper divisors (53724120).

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

26861880 is a wasteful number, since it uses less digits than its factorization.

26861880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223863 (or 223859 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 39.

The square root of 26861880 is about 5182.8447786906. The cubic root of 26861880 is about 299.4875696600.

The spelling of 26861880 in words is "twenty-six million, eight hundred sixty-one thousand, eight hundred eighty".