22718112 has 48 divisors (see below), whose sum is σ = 62233920. Its totient is φ = 7242752.

The previous prime is 22718041. The next prime is 22718117. The reversal of 22718112 is 21181722.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×22718112² = 1032225225689088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22718117) by changing a digit.

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, 2937 + ... + 7352.

It is an arithmetic number, because the mean of its divisors is an integer number (1296540).

Almost surely, 2^22718112 is an apocalyptic number.

It is an amenable number.

22718112 is an abundant number, since it is smaller than the sum of its proper divisors (39515808).

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

22718112 is a wasteful number, since it uses less digits than its factorization.

22718112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10325 (or 10317 counting only the distinct ones).

The product of its digits is 448, while the sum is 24.

The square root of 22718112 is about 4766.3520642101. The cubic root of 22718112 is about 283.2201045448.

Adding to 22718112 its reverse (21181722), we get a palindrome (43899834).

The spelling of 22718112 in words is "twenty-two million, seven hundred eighteen thousand, one hundred twelve".