2272284 has 72 divisors (see below), whose sum is σ = 6709248. Its totient is φ = 635040.

The previous prime is 2272273. The next prime is 2272297. The reversal of 2272284 is 4822722.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17829 + ... + 17955.

It is an arithmetic number, because the mean of its divisors is an integer number (93184).

2^2272284 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2272284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3354624).

2272284 is an abundant number, since it is smaller than the sum of its proper divisors (4436964).

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

2272284 is a wasteful number, since it uses less digits than its factorization.

2272284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 210 counting only the distinct ones).

The product of its digits is 3584, while the sum is 27.

The square root of 2272284 is about 1507.4096987880. The cubic root of 2272284 is about 131.4682464160.

It can be divided in two parts, 2272 and 284, that added together give a triangular number (2556 = T₇₁).

The spelling of 2272284 in words is "two million, two hundred seventy-two thousand, two hundred eighty-four".