4121442 has 80 divisors (see below), whose sum is σ = 10570560. Its totient is φ = 1189728.

The previous prime is 4121441. The next prime is 4121459. The reversal of 4121442 is 2441214.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4121441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 39963 + ... + 40065.

It is an arithmetic number, because the mean of its divisors is an integer number (132132).

Almost surely, 2^4121442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4121442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5285280).

4121442 is an abundant number, since it is smaller than the sum of its proper divisors (6449118).

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

4121442 is a wasteful number, since it uses less digits than its factorization.

4121442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149 (or 140 counting only the distinct ones).

The product of its digits is 256, while the sum is 18.

The square root of 4121442 is about 2030.1334931477. The cubic root of 4121442 is about 160.3305925000.

Adding to 4121442 its reverse (2441214), we get a palindrome (6562656).

The spelling of 4121442 in words is "four million, one hundred twenty-one thousand, four hundred forty-two".