2042238 has 48 divisors (see below), whose sum is σ = 4692240. Its totient is φ = 591360.

The previous prime is 2042237. The next prime is 2042263. The reversal of 2042238 is 8322402.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2042233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21006 + ... + 21102.

It is an arithmetic number, because the mean of its divisors is an integer number (97755).

2^2042238 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2042238, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2346120).

2042238 is an abundant number, since it is smaller than the sum of its proper divisors (2650002).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2042238 is a wasteful number, since it uses less digits than its factorization.

2042238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 2042238 is about 1429.0689276588. The cubic root of 2042238 is about 126.8728758734.

It can be divided in two parts, 204 and 2238, that added together give a palindrome (2442).

The spelling of 2042238 in words is "two million, forty-two thousand, two hundred thirty-eight".