2289216 has 28 divisors (see below), whose sum is σ = 6057392. Its totient is φ = 763008.

The previous prime is 2289211. The next prime is 2289233. The reversal of 2289216 is 6129822.

It is not an unprimeable number, because it can be changed into a prime (2289211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5770 + ... + 6153.

2^2289216 is an apocalyptic number.

It is an amenable number.

2289216 is an abundant number, since it is smaller than the sum of its proper divisors (3768176).

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

2289216 is a wasteful number, since it uses less digits than its factorization.

2289216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11938 (or 11928 counting only the distinct ones).

The product of its digits is 3456, while the sum is 30.

The square root of 2289216 is about 1513.0155319758. The cubic root of 2289216 is about 131.7939853401.

Subtracting 2289216 from its reverse (6129822), we obtain a triangular number (3840606 = T₂₇₇₁).

The spelling of 2289216 in words is "two million, two hundred eighty-nine thousand, two hundred sixteen".