26053840 has 20 divisors (see below), whose sum is σ = 60575364. Its totient is φ = 10421504.

The previous prime is 26053831. The next prime is 26053847. The reversal of 26053840 is 4835062.

It can be written as a sum of positive squares in 2 ways, for example, as 5875776 + 20178064 = 2424^2 + 4492^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a nialpdrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 26053799 and 26053808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26053847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162757 + ... + 162916.

Almost surely, 2^26053840 is an apocalyptic number.

26053840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26053840 is an abundant number, since it is smaller than the sum of its proper divisors (34521524).

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

26053840 is a wasteful number, since it uses less digits than its factorization.

26053840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325686 (or 325680 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 26053840 is about 5104.2962296481. The cubic root of 26053840 is about 296.4539540438.

The spelling of 26053840 in words is "twenty-six million, fifty-three thousand, eight hundred forty".