22003284 has 24 divisors (see below), whose sum is σ = 51736608. Its totient is φ = 7277920.

The previous prime is 22003243. The next prime is 22003297. The reversal of 22003284 is 48230022.

It is a self number, because there is not a number n which added to its sum of digits gives 22003284.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5427 + ... + 8570.

It is an arithmetic number, because the mean of its divisors is an integer number (2155692).

Almost surely, 2^22003284 is an apocalyptic number.

It is an amenable number.

22003284 is an abundant number, since it is smaller than the sum of its proper divisors (29733324).

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

22003284 is a wasteful number, since it uses less digits than its factorization.

22003284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14135 (or 14133 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 22003284 is about 4690.7658223365. The cubic root of 22003284 is about 280.2178746403.

It can be divided in two parts, 220032 and 84, that added together give a triangular number (220116 = T₆₆₃).

The spelling of 22003284 in words is "twenty-two million, three thousand, two hundred eighty-four".