26810940 has 96 divisors (see below), whose sum is σ = 83119680. Its totient is φ = 6414336.

The previous prime is 26810933. The next prime is 26810969. The reversal of 26810940 is 4901862.

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

It is a junction number, because it is equal to n+sod(n) for n = 26810898 and 26810907.

It is a congruent number.

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, 28396 + ... + 29324.

It is an arithmetic number, because the mean of its divisors is an integer number (865830).

Almost surely, 2^26810940 is an apocalyptic number.

26810940 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 26810940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41559840).

26810940 is an abundant number, since it is smaller than the sum of its proper divisors (56308740).

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

26810940 is a wasteful number, since it uses less digits than its factorization.

26810940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991 (or 989 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 26810940 is about 5177.9281570914. The cubic root of 26810940 is about 299.2981370195.

The spelling of 26810940 in words is "twenty-six million, eight hundred ten thousand, nine hundred forty".