22236680 has 64 divisors (see below), whose sum is σ = 54062640. Its totient is φ = 8200192.

The previous prime is 22236679. The next prime is 22236689. The reversal of 22236680 is 8663222.

It can be written as a sum of positive squares in 8 ways, for example, as 8561476 + 13675204 = 2926^2 + 3698^2 .

It is not an unprimeable number, because it can be changed into a prime (22236689) 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, 35732 + ... + 36348.

Almost surely, 2^22236680 is an apocalyptic number.

22236680 is a gapful number since it is divisible by the number (20) 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 22236680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27031320).

22236680 is an abundant number, since it is smaller than the sum of its proper divisors (31825960).

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

22236680 is a wasteful number, since it uses less digits than its factorization.

22236680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698 (or 694 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 22236680 is about 4715.5784374772. The cubic root of 22236680 is about 281.2051793597.

The spelling of 22236680 in words is "twenty-two million, two hundred thirty-six thousand, six hundred eighty".