2289646 has 4 divisors (see below), whose sum is σ = 3434472. Its totient is φ = 1144822.

The previous prime is 2289643. The next prime is 2289647. The reversal of 2289646 is 6469822.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2289641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572410 + ... + 572413.

It is an arithmetic number, because the mean of its divisors is an integer number (858618).

2^2289646 is an apocalyptic number.

2289646 is a deficient number, since it is larger than the sum of its proper divisors (1144826).

2289646 is a wasteful number, since it uses less digits than its factorization.

2289646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144825.

The product of its digits is 41472, while the sum is 37.

The square root of 2289646 is about 1513.1576256293. The cubic root of 2289646 is about 131.8022367626.

The spelling of 2289646 in words is "two million, two hundred eighty-nine thousand, six hundred forty-six".