22229384 has 8 divisors (see below), whose sum is σ = 41680110. Its totient is φ = 11114688.

The previous prime is 22229381. The next prime is 22229401. The reversal of 22229384 is 48392222.

It can be written as a sum of positive squares in only one way, i.e., 19166884 + 3062500 = 4378^2 + 1750^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 22229384.

It is not an unprimeable number, because it can be changed into a prime (22229381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1389329 + ... + 1389344.

Almost surely, 2^22229384 is an apocalyptic number.

It is an amenable number.

22229384 is a deficient number, since it is larger than the sum of its proper divisors (19450726).

22229384 is a wasteful number, since it uses less digits than its factorization.

22229384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2778679 (or 2778675 counting only the distinct ones).

The product of its digits is 13824, while the sum is 32.

The square root of 22229384 is about 4714.8047679623. The cubic root of 22229384 is about 281.1744209099.

The spelling of 22229384 in words is "twenty-two million, two hundred twenty-nine thousand, three hundred eighty-four".