648042 has 8 divisors (see below), whose sum is σ = 1296096. Its totient is φ = 216012.

The previous prime is 648041. The next prime is 648047. The reversal of 648042 is 240846.

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

648042 is an admirable number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 648042.

It is not an unprimeable number, because it can be changed into a prime (648041) 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, 53998 + ... + 54009.

It is an arithmetic number, because the mean of its divisors is an integer number (162012).

2⁶⁴⁸⁰⁴² is an apocalyptic number.

648042 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.

648042 is a wasteful number, since it uses less digits than its factorization.

648042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108012.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 648042 is about 805.0105589370. The cubic root of 648042 is about 86.5368437608.

Adding to 648042 its reverse (240846), we get a palindrome (888888).

The spelling of 648042 in words is "six hundred forty-eight thousand, forty-two".