2289904 has 20 divisors (see below), whose sum is σ = 4468464. Its totient is φ = 1136768.

The previous prime is 2289901. The next prime is 2289919. The reversal of 2289904 is 4099822.

It is a self number, because there is not a number n which added to its sum of digits gives 2289904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2289901) 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, 2244 + ... + 3100.

2^2289904 is an apocalyptic number.

It is an amenable number.

2289904 is a deficient number, since it is larger than the sum of its proper divisors (2178560).

2289904 is a wasteful number, since it uses less digits than its factorization.

2289904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032 (or 1026 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 2289904 is about 1513.2428754169. The cubic root of 2289904 is about 131.8071871203.

The spelling of 2289904 in words is "two million, two hundred eighty-nine thousand, nine hundred four".