2217304 has 8 divisors (see below), whose sum is σ = 4157460. Its totient is φ = 1108648.

The previous prime is 2217301. The next prime is 2217317. The reversal of 2217304 is 4037122.

2217304 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2217301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138574 + ... + 138589.

2^2217304 is an apocalyptic number.

It is an amenable number.

2217304 is a deficient number, since it is larger than the sum of its proper divisors (1940156).

2217304 is a wasteful number, since it uses less digits than its factorization.

2217304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277169 (or 277165 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 2217304 is about 1489.0614493700. The cubic root of 2217304 is about 130.3992459841.

The spelling of 2217304 in words is "two million, two hundred seventeen thousand, three hundred four".