26390016 has 160 divisors (see below), whose sum is σ = 82494720. Its totient is φ = 8312832.

The previous prime is 26390009. The next prime is 26390017. The reversal of 26390016 is 61009362.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26390017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 317911 + ... + 317993.

It is an arithmetic number, because the mean of its divisors is an integer number (515592).

Almost surely, 2^26390016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26390016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41247360).

26390016 is an abundant number, since it is smaller than the sum of its proper divisors (56104704).

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

26390016 is an equidigital number, since it uses as much as digits as its factorization.

26390016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133 (or 111 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 26390016 is about 5137.1213729092. The cubic root of 26390016 is about 297.7235699119.

Adding to 26390016 its reverse (61009362), we get a palindrome (87399378).

The spelling of 26390016 in words is "twenty-six million, three hundred ninety thousand, sixteen".