2042838 has 48 divisors (see below), whose sum is σ = 5231616. Its totient is φ = 563760.

The previous prime is 2042819. The next prime is 2042849. The reversal of 2042838 is 8382402.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3645 + ... + 4167.

It is an arithmetic number, because the mean of its divisors is an integer number (108992).

2^2042838 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2042838, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2615808).

2042838 is an abundant number, since it is smaller than the sum of its proper divisors (3188778).

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

2042838 is a wasteful number, since it uses less digits than its factorization.

2042838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569 (or 566 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 2042838 is about 1429.2788391353. The cubic root of 2042838 is about 126.8852995432.

The spelling of 2042838 in words is "two million, forty-two thousand, eight hundred thirty-eight".