22671636 has 48 divisors (see below), whose sum is σ = 59976000. Its totient is φ = 6607872.

The previous prime is 22671631. The next prime is 22671637. The reversal of 22671636 is 63617622.

It is a zygodrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 22671597 and 22671606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22671631) 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, 861 + ... + 6788.

It is an arithmetic number, because the mean of its divisors is an integer number (1249500).

Almost surely, 2^22671636 is an apocalyptic number.

22671636 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22671636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29988000).

22671636 is an abundant number, since it is smaller than the sum of its proper divisors (37304364).

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

22671636 is a wasteful number, since it uses less digits than its factorization.

22671636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7688 (or 7686 counting only the distinct ones).

The product of its digits is 18144, while the sum is 33.

The square root of 22671636 is about 4761.4741414818. The cubic root of 22671636 is about 283.0268384274.

The spelling of 22671636 in words is "twenty-two million, six hundred seventy-one thousand, six hundred thirty-six".