6440422606 has 8 divisors (see below), whose sum is σ = 9664229304. Its totient is φ = 3219012840.

The previous prime is 6440422601. The next prime is 6440422607. The reversal of 6440422606 is 6062240446.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6440422601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 592500 + ... + 603271.

It is an arithmetic number, because the mean of its divisors is an integer number (1208028663).

Almost surely, 2^6440422606 is an apocalyptic number.

6440422606 is a deficient number, since it is larger than the sum of its proper divisors (3223806698).

6440422606 is a wasteful number, since it uses less digits than its factorization.

6440422606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1198466.

The product of its (nonzero) digits is 55296, while the sum is 34.

The square root of 6440422606 is about 80252.2436197269. The cubic root of 6440422606 is about 1860.5361893091.

The spelling of 6440422606 in words is "six billion, four hundred forty million, four hundred twenty-two thousand, six hundred six".