6443908422 has 32 divisors (see below), whose sum is σ = 14735058432. Its totient is φ = 1840351104.

The previous prime is 6443908417. The next prime is 6443908441. The reversal of 6443908422 is 2248093446.

It is a super-2 number, since 2×6443908422² = 83047911502245060168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74478 + ... + 135774.

It is an arithmetic number, because the mean of its divisors is an integer number (460470576).

Almost surely, 2^6443908422 is an apocalyptic number.

6443908422 is an abundant number, since it is smaller than the sum of its proper divisors (8291150010).

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

6443908422 is a wasteful number, since it uses less digits than its factorization.

6443908422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63812.

The product of its (nonzero) digits is 331776, while the sum is 42.

The square root of 6443908422 is about 80273.9585544403. The cubic root of 6443908422 is about 1860.8717944651.

The spelling of 6443908422 in words is "six billion, four hundred forty-three million, nine hundred eight thousand, four hundred twenty-two".