22207680 has 168 divisors, whose sum is σ = 83448144. Its totient is φ = 5376000.

The previous prime is 22207667. The next prime is 22207697. The reversal of 22207680 is 8670222.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31330 + ... + 32030.

Almost surely, 2^22207680 is an apocalyptic number.

22207680 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 22207680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41724072).

22207680 is an abundant number, since it is smaller than the sum of its proper divisors (61240464).

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

22207680 is a wasteful number, since it uses less digits than its factorization.

22207680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735 (or 722 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 22207680 is about 4712.5025198932. The cubic root of 22207680 is about 281.0828814587.

It can be divided in two parts, 22 and 207680, that added together give a palindrome (207702).

The spelling of 22207680 in words is "twenty-two million, two hundred seven thousand, six hundred eighty".