22284644 has 24 divisors (see below), whose sum is σ = 42470400. Its totient is φ = 10190880.

The previous prime is 22284641. The next prime is 22284659. The reversal of 22284644 is 44648222.

It is a self number, because there is not a number n which added to its sum of digits gives 22284644.

It is not an unprimeable number, because it can be changed into a prime (22284641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2852 + ... + 7259.

It is an arithmetic number, because the mean of its divisors is an integer number (1769600).

Almost surely, 2^22284644 is an apocalyptic number.

It is an amenable number.

22284644 is a deficient number, since it is larger than the sum of its proper divisors (20185756).

22284644 is a wasteful number, since it uses less digits than its factorization.

22284644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10163 (or 10161 counting only the distinct ones).

The product of its digits is 24576, while the sum is 32.

The square root of 22284644 is about 4720.6613943387. The cubic root of 22284644 is about 281.4072185019.

The spelling of 22284644 in words is "twenty-two million, two hundred eighty-four thousand, six hundred forty-four".