26531916 has 12 divisors (see below), whose sum is σ = 61907832. Its totient is φ = 8843968.

The previous prime is 26531899. The next prime is 26531941. The reversal of 26531916 is 61913562.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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, 1105485 + ... + 1105508.

It is an arithmetic number, because the mean of its divisors is an integer number (5158986).

Almost surely, 2^26531916 is an apocalyptic number.

It is an amenable number.

26531916 is an abundant number, since it is smaller than the sum of its proper divisors (35375916).

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

26531916 is a wasteful number, since it uses less digits than its factorization.

26531916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2211000 (or 2210998 counting only the distinct ones).

The product of its digits is 9720, while the sum is 33.

The square root of 26531916 is about 5150.9140936343. The cubic root of 26531916 is about 298.2562395249.

The spelling of 26531916 in words is "twenty-six million, five hundred thirty-one thousand, nine hundred sixteen".