4139434428 has 24 divisors (see below), whose sum is σ = 9712644480. Its totient is φ = 1372102320.

The previous prime is 4139434381. The next prime is 4139434447. The reversal of 4139434428 is 8244349314.

It is a self number, because there is not a number n which added to its sum of digits gives 4139434428.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 961408 + ... + 965703.

It is an arithmetic number, because the mean of its divisors is an integer number (404693520).

Almost surely, 2^4139434428 is an apocalyptic number.

It is an amenable number.

4139434428 is an abundant number, since it is smaller than the sum of its proper divisors (5573210052).

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

4139434428 is a wasteful number, since it uses less digits than its factorization.

4139434428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1927297 (or 1927295 counting only the distinct ones).

The product of its digits is 331776, while the sum is 42.

The square root of 4139434428 is about 64338.4366300581. The cubic root of 4139434428 is about 1605.6356508229.

The spelling of 4139434428 in words is "four billion, one hundred thirty-nine million, four hundred thirty-four thousand, four hundred twenty-eight".