8556442 has 8 divisors (see below), whose sum is σ = 12884256. Its totient is φ = 4261692.

The previous prime is 8556419. The next prime is 8556463. The reversal of 8556442 is 2446558.

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

It is a d-powerful number, because it can be written as 8 + 5 + 5⁷ + 6⁵ + 4⁷ + 4⁸ + 2²³ .

It is a junction number, because it is equal to n+sod(n) for n = 8556398 and 8556407.

It is an unprimeable number.

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, 7608 + ... + 8659.

It is an arithmetic number, because the mean of its divisors is an integer number (1610532).

Almost surely, 2^8556442 is an apocalyptic number.

8556442 is a deficient number, since it is larger than the sum of its proper divisors (4327814).

8556442 is a wasteful number, since it uses less digits than its factorization.

8556442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16532.

The product of its digits is 38400, while the sum is 34.

The square root of 8556442 is about 2925.1396547857. The cubic root of 8556442 is about 204.5334780986.

It can be divided in two parts, 8556 and 442, that added together give a palindrome (8998).

The spelling of 8556442 in words is "eight million, five hundred fifty-six thousand, four hundred forty-two".