22252716 has 18 divisors (see below), whose sum is σ = 56250012. Its totient is φ = 7417560.

The previous prime is 22252691. The next prime is 22252717. The reversal of 22252716 is 61725222.

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 22252716.

It is not an unprimeable number, because it can be changed into a prime (22252717) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 309030 + ... + 309101.

Almost surely, 2^22252716 is an apocalyptic number.

It is an amenable number.

22252716 is an abundant number, since it is smaller than the sum of its proper divisors (33997296).

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

22252716 is a wasteful number, since it uses less digits than its factorization.

22252716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618141 (or 618136 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 22252716 is about 4717.2784526674. The cubic root of 22252716 is about 281.2727602321.

Adding to 22252716 its reverse (61725222), we get a palindrome (83977938).

The spelling of 22252716 in words is "twenty-two million, two hundred fifty-two thousand, seven hundred sixteen".