6443398142 has 32 divisors (see below), whose sum is σ = 10380614400. Its totient is φ = 2990433600.

The previous prime is 6443398127. The next prime is 6443398151. The reversal of 6443398142 is 2418933446.

It is a junction number, because it is equal to n+sod(n) for n = 6443398093 and 6443398102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 692642 + ... + 701882.

It is an arithmetic number, because the mean of its divisors is an integer number (324394200).

Almost surely, 2^6443398142 is an apocalyptic number.

6443398142 is a deficient number, since it is larger than the sum of its proper divisors (3937216258).

6443398142 is a wasteful number, since it uses less digits than its factorization.

6443398142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9632.

The product of its digits is 497664, while the sum is 44.

The square root of 6443398142 is about 80270.7801257718. The cubic root of 6443398142 is about 1860.8226736178.

The spelling of 6443398142 in words is "six billion, four hundred forty-three million, three hundred ninety-eight thousand, one hundred forty-two".