22072716 has 24 divisors (see below), whose sum is σ = 57225840. Its totient is φ = 7357536.

The previous prime is 22072703. The next prime is 22072723. The reversal of 22072716 is 61727022.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 22072716.

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 7 ways as a sum of consecutive naturals, for example, 102081 + ... + 102296.

It is an arithmetic number, because the mean of its divisors is an integer number (2384410).

Almost surely, 2^22072716 is an apocalyptic number.

It is an amenable number.

22072716 is an abundant number, since it is smaller than the sum of its proper divisors (35153124).

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

22072716 is a wasteful number, since it uses less digits than its factorization.

22072716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204390 (or 204382 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 22072716 is about 4698.1609167844. The cubic root of 22072716 is about 280.5123103637.

Adding to 22072716 its reverse (61727022), we get a palindrome (83799738).

The spelling of 22072716 in words is "twenty-two million, seventy-two thousand, seven hundred sixteen".