556442 has 8 divisors (see below), whose sum is σ = 848532. Its totient is φ = 273600.

The previous prime is 556441. The next prime is 556459. The reversal of 556442 is 244655.

It can be written as a sum of positive squares in 2 ways, for example, as 477481 + 78961 = 691^2 + 281^2 .

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

It is not an unprimeable number, because it can be changed into a prime (556441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2159 + ... + 2402.

2⁵⁵⁶⁴⁴² is an apocalyptic number.

556442 is a deficient number, since it is larger than the sum of its proper divisors (292090).

556442 is a wasteful number, since it uses less digits than its factorization.

556442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4624.

The product of its digits is 4800, while the sum is 26.

The square root of 556442 is about 745.9504004959. The cubic root of 556442 is about 82.2507691099.

The spelling of 556442 in words is "five hundred fifty-six thousand, four hundred forty-two".