6442220346 has 64 divisors (see below), whose sum is σ = 13958023680. Its totient is φ = 1974481920.

The previous prime is 6442220333. The next prime is 6442220419. The reversal of 6442220346 is 6430222446.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3973416 + ... + 3975036.

It is an arithmetic number, because the mean of its divisors is an integer number (218094120).

Almost surely, 2^6442220346 is an apocalyptic number.

6442220346 is an abundant number, since it is smaller than the sum of its proper divisors (7515803334).

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

6442220346 is a wasteful number, since it uses less digits than its factorization.

6442220346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2519.

The product of its (nonzero) digits is 55296, while the sum is 33.

The square root of 6442220346 is about 80263.4433973524. The cubic root of 6442220346 is about 1860.7092860850.

The spelling of 6442220346 in words is "six billion, four hundred forty-two million, two hundred twenty thousand, three hundred forty-six".