646241342 has 8 divisors (see below), whose sum is σ = 969694032. Its totient is φ = 323010000.

The previous prime is 646241341. The next prime is 646241377. The reversal of 646241342 is 243142646.

646241342 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 646241299 and 646241308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646241341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47834 + ... + 59837.

It is an arithmetic number, because the mean of its divisors is an integer number (121211754).

Almost surely, 2^646241342 is an apocalyptic number.

646241342 is a deficient number, since it is larger than the sum of its proper divisors (323452690).

646241342 is a wasteful number, since it uses less digits than its factorization.

646241342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110674.

The product of its digits is 27648, while the sum is 32.

The square root of 646241342 is about 25421.2773479225. The cubic root of 646241342 is about 864.5661860701.

Adding to 646241342 its reverse (243142646), we get a palindrome (889383988).

The spelling of 646241342 in words is "six hundred forty-six million, two hundred forty-one thousand, three hundred forty-two".