26868940 has 96 divisors (see below), whose sum is σ = 68640768. Its totient is φ = 8640000.

The previous prime is 26868923. The next prime is 26868953. The reversal of 26868940 is 4986862.

It is a happy number.

It is a zygodrome in base 2.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 177865 + ... + 178015.

It is an arithmetic number, because the mean of its divisors is an integer number (715008).

Almost surely, 2^26868940 is an apocalyptic number.

26868940 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 26868940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34320384).

26868940 is an abundant number, since it is smaller than the sum of its proper divisors (41771828).

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

26868940 is a wasteful number, since it uses less digits than its factorization.

26868940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239 (or 237 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 26868940 is about 5183.5258270795. The cubic root of 26868940 is about 299.5138050665.

The spelling of 26868940 in words is "twenty-six million, eight hundred sixty-eight thousand, nine hundred forty".