22240716 has 24 divisors (see below), whose sum is σ = 54626880. Its totient is φ = 7023312.

The previous prime is 22240711. The next prime is 22240721. The reversal of 22240716 is 61704222.

22240716 = 1568² + 1569² + ... + 1576².

It is an interprime number because it is at equal distance from previous prime (22240711) and next prime (22240721).

It is not an unprimeable number, because it can be changed into a prime (22240711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48546 + ... + 49001.

It is an arithmetic number, because the mean of its divisors is an integer number (2276120).

Almost surely, 2^22240716 is an apocalyptic number.

It is an amenable number.

22240716 is an abundant number, since it is smaller than the sum of its proper divisors (32386164).

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

22240716 is a wasteful number, since it uses less digits than its factorization.

22240716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97573 (or 97571 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 22240716 is about 4716.0063613189. The cubic root of 22240716 is about 281.2221914234. Note that the first 3 decimals are identical.

Adding to 22240716 its reverse (61704222), we get a palindrome (83944938).

The spelling of 22240716 in words is "twenty-two million, two hundred forty thousand, seven hundred sixteen".