22109854 has 16 divisors (see below), whose sum is σ = 37269792. Its totient is φ = 9760608.

The previous prime is 22109827. The next prime is 22109891. The reversal of 22109854 is 45890122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17889 + ... + 19084.

It is an arithmetic number, because the mean of its divisors is an integer number (2329362).

Almost surely, 2^22109854 is an apocalyptic number.

22109854 is a deficient number, since it is larger than the sum of its proper divisors (15159938).

22109854 is a wasteful number, since it uses less digits than its factorization.

22109854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37011.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 22109854 is about 4702.1116532894. Note that the first 3 decimals coincide. The cubic root of 22109854 is about 280.6695456424.

Adding to 22109854 its reverse (45890122), we get a palindrome (67999976).

The spelling of 22109854 in words is "twenty-two million, one hundred nine thousand, eight hundred fifty-four".