4123938 has 72 divisors (see below), whose sum is σ = 10514448. Its totient is φ = 1074528.

The previous prime is 4123927. The next prime is 4123943. The reversal of 4123938 is 8393214.

Its product of digits (5184) is a multiple of the sum of its prime divisors (108).

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 49645 + ... + 49727.

It is an arithmetic number, because the mean of its divisors is an integer number (146034).

Almost surely, 2^4123938 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4123938, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5257224).

4123938 is an abundant number, since it is smaller than the sum of its proper divisors (6390510).

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

4123938 is a wasteful number, since it uses less digits than its factorization.

4123938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128 (or 108 counting only the distinct ones).

The product of its digits is 5184, while the sum is 30.

The square root of 4123938 is about 2030.7481380023. The cubic root of 4123938 is about 160.3629520803.

The spelling of 4123938 in words is "four million, one hundred twenty-three thousand, nine hundred thirty-eight".