22165328 has 10 divisors (see below), whose sum is σ = 42945354. Its totient is φ = 11082656.

The previous prime is 22165327. The next prime is 22165337. The reversal of 22165328 is 82356122.

It can be written as a sum of positive squares in only one way, i.e., 22165264 + 64 = 4708^2 + 8^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22165328.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22165321) by changing a digit.

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 as a sum of consecutive naturals, namely, 692651 + ... + 692682.

Almost surely, 2^22165328 is an apocalyptic number.

It is an amenable number.

22165328 is a deficient number, since it is larger than the sum of its proper divisors (20780026).

22165328 is a wasteful number, since it uses less digits than its factorization.

22165328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1385341 (or 1385335 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 22165328 is about 4708.0067969365. The cubic root of 22165328 is about 280.9040844867.

The spelling of 22165328 in words is "twenty-two million, one hundred sixty-five thousand, three hundred twenty-eight".