4121838 has 24 divisors (see below), whose sum is σ = 10206768. Its totient is φ = 1177632.

The previous prime is 4121827. The next prime is 4121839. The reversal of 4121838 is 8381214.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4121839) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16231 + ... + 16482.

It is an arithmetic number, because the mean of its divisors is an integer number (425282).

Almost surely, 2^4121838 is an apocalyptic number.

4121838 is an abundant number, since it is smaller than the sum of its proper divisors (6084930).

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

4121838 is a wasteful number, since it uses less digits than its factorization.

4121838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32728 (or 32725 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 4121838 is about 2030.2310213372. The cubic root of 4121838 is about 160.3357273436.

The spelling of 4121838 in words is "four million, one hundred twenty-one thousand, eight hundred thirty-eight".