26320320 has 336 divisors, whose sum is σ = 105399840. Its totient is φ = 5971968.

The previous prime is 26320289. The next prime is 26320331. The reversal of 26320320 is 2302362.

26320320 is a `hidden beast` number, since 2 + 632 + 0 + 32 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 26320293 and 26320302.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 711342 + ... + 711378.

It is an arithmetic number, because the mean of its divisors is an integer number (313690).

Almost surely, 2^26320320 is an apocalyptic number.

26320320 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 26320320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52699920).

26320320 is an abundant number, since it is smaller than the sum of its proper divisors (79079520).

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

26320320 is a wasteful number, since it uses less digits than its factorization.

26320320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92 (or 79 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 26320320 is about 5130.3333225045. Note that the first 4 decimals coincide. The cubic root of 26320320 is about 297.4612429797.

Adding to 26320320 its reverse (2302362), we get a palindrome (28622682).

The spelling of 26320320 in words is "twenty-six million, three hundred twenty thousand, three hundred twenty".