4139912 has 48 divisors (see below), whose sum is σ = 9234000. Its totient is φ = 1734432.

The previous prime is 4139909. The next prime is 4139917. The reversal of 4139912 is 2199314.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (4139917) 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, 23039 + ... + 23217.

It is an arithmetic number, because the mean of its divisors is an integer number (192375).

Almost surely, 2^4139912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4139912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4617000).

4139912 is an abundant number, since it is smaller than the sum of its proper divisors (5094088).

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

4139912 is a wasteful number, since it uses less digits than its factorization.

4139912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258 (or 247 counting only the distinct ones).

The product of its digits is 1944, while the sum is 29.

The square root of 4139912 is about 2034.6773700024. The cubic root of 4139912 is about 160.5697396548.

The spelling of 4139912 in words is "four million, one hundred thirty-nine thousand, nine hundred twelve".