26535420 has 36 divisors (see below), whose sum is σ = 80491320. Its totient is φ = 7076064.

The previous prime is 26535409. The next prime is 26535433. The reversal of 26535420 is 2453562.

26535420 is a `hidden beast` number, since 2 + 653 + 5 + 4 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73530 + ... + 73889.

It is an arithmetic number, because the mean of its divisors is an integer number (2235870).

Almost surely, 2^26535420 is an apocalyptic number.

26535420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26535420 is an abundant number, since it is smaller than the sum of its proper divisors (53955900).

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

26535420 is a wasteful number, since it uses less digits than its factorization.

26535420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147434 (or 147429 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 26535420 is about 5151.2542162079. The cubic root of 26535420 is about 298.2693689179.

Adding to 26535420 its reverse (2453562), we get a palindrome (28988982).

The spelling of 26535420 in words is "twenty-six million, five hundred thirty-five thousand, four hundred twenty".