26221822 has 16 divisors (see below), whose sum is σ = 43336944. Its totient is φ = 11800000.

The previous prime is 26221813. The next prime is 26221823. The reversal of 26221822 is 22812262.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26221823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3679 + ... + 8122.

It is an arithmetic number, because the mean of its divisors is an integer number (2708559).

Almost surely, 2^26221822 is an apocalyptic number.

26221822 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

26221822 is a deficient number, since it is larger than the sum of its proper divisors (17115122).

26221822 is a wasteful number, since it uses less digits than its factorization.

26221822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11915.

The product of its digits is 1536, while the sum is 25.

The square root of 26221822 is about 5120.7247533918. The cubic root of 26221822 is about 297.0897180836.

It can be divided in two parts, 2622 and 1822, that added together give a palindrome (4444).

The spelling of 26221822 in words is "twenty-six million, two hundred twenty-one thousand, eight hundred twenty-two".