2209284 has 72 divisors (see below), whose sum is σ = 6971328. Its totient is φ = 573120.

The previous prime is 2209283. The next prime is 2209289. The reversal of 2209284 is 4829022.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2209283) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2374 + ... + 3170.

It is an arithmetic number, because the mean of its divisors is an integer number (96824).

2^2209284 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 2209284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3485664).

2209284 is an abundant number, since it is smaller than the sum of its proper divisors (4762044).

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

2209284 is a wasteful number, since it uses less digits than its factorization.

2209284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825 (or 820 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 2209284 is about 1486.3660383634. The cubic root of 2209284 is about 130.2418378008.

The spelling of 2209284 in words is "two million, two hundred nine thousand, two hundred eighty-four".