26222388 has 12 divisors (see below), whose sum is σ = 61185600. Its totient is φ = 8740792.

The previous prime is 26222377. The next prime is 26222407. The reversal of 26222388 is 88322262.

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

It is a super-2 number, since 2×26222388² = 1375227264845088, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 1092588 + ... + 1092611.

It is an arithmetic number, because the mean of its divisors is an integer number (5098800).

Almost surely, 2^26222388 is an apocalyptic number.

It is an amenable number.

26222388 is an abundant number, since it is smaller than the sum of its proper divisors (34963212).

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

26222388 is a wasteful number, since it uses less digits than its factorization.

26222388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2185206 (or 2185204 counting only the distinct ones).

The product of its digits is 18432, while the sum is 33.

The square root of 26222388 is about 5120.7800187081. The cubic root of 26222388 is about 297.0918556362.

The spelling of 26222388 in words is "twenty-six million, two hundred twenty-two thousand, three hundred eighty-eight".