26843540 has 12 divisors (see below), whose sum is σ = 56371476. Its totient is φ = 10737408.

The previous prime is 26843521. The next prime is 26843543. The reversal of 26843540 is 4534862.

It can be written as a sum of positive squares in 2 ways, for example, as 14760964 + 12082576 = 3842^2 + 3476^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 26843497 and 26843506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26843543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 671069 + ... + 671108.

It is an arithmetic number, because the mean of its divisors is an integer number (4697623).

Almost surely, 2^26843540 is an apocalyptic number.

26843540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26843540 is an abundant number, since it is smaller than the sum of its proper divisors (29527936).

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

26843540 is a wasteful number, since it uses less digits than its factorization.

26843540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342186 (or 1342184 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 26843540 is about 5181.0751779915. The cubic root of 26843540 is about 299.4193955717.

The spelling of 26843540 in words is "twenty-six million, eight hundred forty-three thousand, five hundred forty".