22169712 has 80 divisors (see below), whose sum is σ = 60567552. Its totient is φ = 6977280.

The previous prime is 22169711. The next prime is 22169729. The reversal of 22169712 is 21796122.

It is a super-2 number, since 2×22169712² = 982992260325888, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22169712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22169711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69778 + ... + 70094.

Almost surely, 2^22169712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22169712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30283776).

22169712 is an abundant number, since it is smaller than the sum of its proper divisors (38397840).

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

22169712 is a wasteful number, since it uses less digits than its factorization.

22169712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406 (or 400 counting only the distinct ones).

The product of its digits is 3024, while the sum is 30.

The square root of 22169712 is about 4708.4723637290. The cubic root of 22169712 is about 280.9226029332.

The spelling of 22169712 in words is "twenty-two million, one hundred sixty-nine thousand, seven hundred twelve".