26618022 has 48 divisors (see below), whose sum is σ = 62741952. Its totient is φ = 8121600.

The previous prime is 26618003. The next prime is 26618029. The reversal of 26618022 is 22081662.

26618022 is a `hidden beast` number, since 26 + 618 + 0 + 22 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26618029) 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 23 ways as a sum of consecutive naturals, for example, 10147 + ... + 12497.

It is an arithmetic number, because the mean of its divisors is an integer number (1307124).

Almost surely, 2^26618022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26618022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31370976).

26618022 is an abundant number, since it is smaller than the sum of its proper divisors (36123930).

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

26618022 is a wasteful number, since it uses less digits than its factorization.

26618022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2413 (or 2410 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 26618022 is about 5159.2656454189. The cubic root of 26618022 is about 298.5785421629.

Adding to 26618022 its reverse (22081662), we get a palindrome (48699684).

The spelling of 26618022 in words is "twenty-six million, six hundred eighteen thousand, twenty-two".