556438439 has 8 divisors (see below), whose sum is σ = 560371968. Its totient is φ = 552517560.

The previous prime is 556438433. The next prime is 556438451. The reversal of 556438439 is 934834655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 556438439 - 2⁴ = 556438423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 556438393 and 556438402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556438433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95714 + ... + 101360.

It is an arithmetic number, because the mean of its divisors is an integer number (70046496).

Almost surely, 2^556438439 is an apocalyptic number.

556438439 is a deficient number, since it is larger than the sum of its proper divisors (3933529).

556438439 is a wasteful number, since it uses less digits than its factorization.

556438439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6325.

The product of its digits is 1555200, while the sum is 47.

The square root of 556438439 is about 23588.9473906743. The cubic root of 556438439 is about 822.5059365246.

The spelling of 556438439 in words is "five hundred fifty-six million, four hundred thirty-eight thousand, four hundred thirty-nine".