6442445042 has 8 divisors (see below), whose sum is σ = 10542182832. Its totient is φ = 2928384100.

The previous prime is 6442445003. The next prime is 6442445063. The reversal of 6442445042 is 2405442446.

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 = 6442444993 and 6442445011.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146419184 + ... + 146419227.

It is an arithmetic number, because the mean of its divisors is an integer number (1317772854).

Almost surely, 2^6442445042 is an apocalyptic number.

6442445042 is a deficient number, since it is larger than the sum of its proper divisors (4099737790).

6442445042 is a wasteful number, since it uses less digits than its factorization.

6442445042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292838424.

The product of its (nonzero) digits is 122880, while the sum is 35.

The square root of 6442445042 is about 80264.8431257422. The cubic root of 6442445042 is about 1860.7309188478.

Adding to 6442445042 its reverse (2405442446), we get a palindrome (8847887488).

The spelling of 6442445042 in words is "six billion, four hundred forty-two million, four hundred forty-five thousand, forty-two".