2289638 has 16 divisors (see below), whose sum is σ = 3746736. Its totient is φ = 1043040.

The previous prime is 2289601. The next prime is 2289641. The reversal of 2289638 is 8369822.

It is a happy number.

It is a nialpdrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1628 + ... + 2688.

It is an arithmetic number, because the mean of its divisors is an integer number (234171).

2^2289638 is an apocalyptic number.

2289638 is a deficient number, since it is larger than the sum of its proper divisors (1457098).

2289638 is a wasteful number, since it uses less digits than its factorization.

2289638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159.

The product of its digits is 41472, while the sum is 38.

The square root of 2289638 is about 1513.1549821482. The cubic root of 2289638 is about 131.8020832572.

The spelling of 2289638 in words is "two million, two hundred eighty-nine thousand, six hundred thirty-eight".