6444334398 has 32 divisors (see below), whose sum is σ = 13687393824. Its totient is φ = 2015741952.

The previous prime is 6444334357. The next prime is 6444334417. The reversal of 6444334398 is 8934334446.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59365 + ... + 128112.

It is an arithmetic number, because the mean of its divisors is an integer number (427731057).

Almost surely, 2^6444334398 is an apocalyptic number.

6444334398 is an abundant number, since it is smaller than the sum of its proper divisors (7243059426).

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

6444334398 is a wasteful number, since it uses less digits than its factorization.

6444334398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187836.

The product of its digits is 2985984, while the sum is 48.

The square root of 6444334398 is about 80276.6117745387. The cubic root of 6444334398 is about 1860.9127980096.

Adding to 6444334398 its sum of digits (48), we get a palindrome (6444334446).

The spelling of 6444334398 in words is "six billion, four hundred forty-four million, three hundred thirty-four thousand, three hundred ninety-eight".