2389838 has 16 divisors (see below), whose sum is σ = 4081536. Its totient is φ = 1038840.

The previous prime is 2389831. The next prime is 2389841. The reversal of 2389838 is 8389832.

It is a super-2 number, since 2×2389838² = 11422651332488, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 2389795 and 2389804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2389831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1856 + ... + 2867.

It is an arithmetic number, because the mean of its divisors is an integer number (255096).

2^2389838 is an apocalyptic number.

2389838 is a deficient number, since it is larger than the sum of its proper divisors (1691698).

2389838 is a wasteful number, since it uses less digits than its factorization.

2389838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4759.

The product of its digits is 82944, while the sum is 41.

The square root of 2389838 is about 1545.9100879417. The cubic root of 2389838 is about 133.6973566372.

The spelling of 2389838 in words is "two million, three hundred eighty-nine thousand, eight hundred thirty-eight".