22165384 has 8 divisors (see below), whose sum is σ = 41560110. Its totient is φ = 11082688.

The previous prime is 22165369. The next prime is 22165393. The reversal of 22165384 is 48356122.

It can be written as a sum of positive squares in only one way, i.e., 19980900 + 2184484 = 4470^2 + 1478^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 1385329 + ... + 1385344.

Almost surely, 2^22165384 is an apocalyptic number.

It is an amenable number.

22165384 is a deficient number, since it is larger than the sum of its proper divisors (19394726).

22165384 is a wasteful number, since it uses less digits than its factorization.

22165384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2770679 (or 2770675 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

The square root of 22165384 is about 4708.0127442478. The cubic root of 22165384 is about 280.9043210516.

The spelling of 22165384 in words is "twenty-two million, one hundred sixty-five thousand, three hundred eighty-four".