22055388 has 24 divisors (see below), whose sum is σ = 52660608. Its totient is φ = 7180656.

The previous prime is 22055377. The next prime is 22055489. The reversal of 22055388 is 88355022.

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 7 ways as a sum of consecutive naturals, for example, 20856 + ... + 21887.

It is an arithmetic number, because the mean of its divisors is an integer number (2194192).

Almost surely, 2^22055388 is an apocalyptic number.

It is an amenable number.

22055388 is an abundant number, since it is smaller than the sum of its proper divisors (30605220).

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

22055388 is a wasteful number, since it uses less digits than its factorization.

22055388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42793 (or 42791 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 22055388 is about 4696.3164288621. The cubic root of 22055388 is about 280.4388865370.

The spelling of 22055388 in words is "twenty-two million, fifty-five thousand, three hundred eighty-eight".