22169862 has 144 divisors (see below), whose sum is σ = 60999120. Its totient is φ = 5987520.

The previous prime is 22169857. The next prime is 22169863. The reversal of 22169862 is 26896122.

It is a happy number.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

Its product of digits (20736) is a multiple of the sum of its prime factors (81).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22169863) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 764464 + ... + 764492.

It is an arithmetic number, because the mean of its divisors is an integer number (423605).

Almost surely, 2^22169862 is an apocalyptic number.

22169862 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 22169862, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30499560).

22169862 is an abundant number, since it is smaller than the sum of its proper divisors (38829258).

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

22169862 is a wasteful number, since it uses less digits than its factorization.

22169862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81 (or 58 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 22169862 is about 4708.4882924353. The cubic root of 22169862 is about 280.9232365048.

The spelling of 22169862 in words is "twenty-two million, one hundred sixty-nine thousand, eight hundred sixty-two".