22105418 has 16 divisors (see below), whose sum is σ = 34552320. Its totient is φ = 10594800.

The previous prime is 22105403. The next prime is 22105439. The reversal of 22105418 is 81450122.

It is a junction number, because it is equal to n+sod(n) for n = 22105393 and 22105402.

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, 5123 + ... + 8393.

It is an arithmetic number, because the mean of its divisors is an integer number (2159520).

Almost surely, 2^22105418 is an apocalyptic number.

22105418 is a deficient number, since it is larger than the sum of its proper divisors (12446902).

22105418 is a wasteful number, since it uses less digits than its factorization.

22105418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3413.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 22105418 is about 4701.6399266639. The cubic root of 22105418 is about 280.6507737202.

The spelling of 22105418 in words is "twenty-two million, one hundred five thousand, four hundred eighteen".