22662636 has 48 divisors (see below), whose sum is σ = 55636224. Its totient is φ = 7166016.

The previous prime is 22662589. The next prime is 22662637. The reversal of 22662636 is 63626622.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 22662597 and 22662606.

It is not an unprimeable number, because it can be changed into a prime (22662637) 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, 43071 + ... + 43593.

It is an arithmetic number, because the mean of its divisors is an integer number (1159088).

Almost surely, 2^22662636 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 22662636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27818112).

22662636 is an abundant number, since it is smaller than the sum of its proper divisors (32973588).

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

22662636 is a wasteful number, since it uses less digits than its factorization.

22662636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710 (or 708 counting only the distinct ones).

The product of its digits is 31104, while the sum is 33.

The square root of 22662636 is about 4760.5289622058. The cubic root of 22662636 is about 282.9893822468.

The spelling of 22662636 in words is "twenty-two million, six hundred sixty-two thousand, six hundred thirty-six".