8478042 has 8 divisors (see below), whose sum is σ = 16956096. Its totient is φ = 2826012.

The previous prime is 8478037. The next prime is 8478049. The reversal of 8478042 is 2408748.

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

8478042 is an admirable number.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 8477994 and 8478012.

It is not an unprimeable number, because it can be changed into a prime (8478049) 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, 706498 + ... + 706509.

It is an arithmetic number, because the mean of its divisors is an integer number (2119512).

Almost surely, 2^8478042 is an apocalyptic number.

8478042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

8478042 is a wasteful number, since it uses less digits than its factorization.

8478042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1413012.

The product of its (nonzero) digits is 14336, while the sum is 33.

The square root of 8478042 is about 2911.7077463235. The cubic root of 8478042 is about 203.9068682928.

The spelling of 8478042 in words is "eight million, four hundred seventy-eight thousand, forty-two".