26843040 has 144 divisors (see below), whose sum is σ = 104727168. Its totient is φ = 6133248.

The previous prime is 26843039. The next prime is 26843059. The reversal of 26843040 is 4034862.

It is a tau number, because it is divible by the number of its divisors (144).

It is a junction number, because it is equal to n+sod(n) for n = 26842995 and 26843013.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8749 + ... + 11411.

It is an arithmetic number, because the mean of its divisors is an integer number (727272).

Almost surely, 2^26843040 is an apocalyptic number.

26843040 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 26843040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52363584).

26843040 is an abundant number, since it is smaller than the sum of its proper divisors (77884128).

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

26843040 is a wasteful number, since it uses less digits than its factorization.

26843040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2691 (or 2680 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 26843040 is about 5181.0269252340. The cubic root of 26843040 is about 299.4175365195.

The spelling of 26843040 in words is "twenty-six million, eight hundred forty-three thousand, forty".