6604220394 has 24 divisors (see below), whose sum is σ = 14389090560. Its totient is φ = 2189107368.

The previous prime is 6604220339. The next prime is 6604220411. The reversal of 6604220394 is 4930224066.

It is a Curzon 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 11 ways as a sum of consecutive naturals, for example, 1021642 + ... + 1028085.

It is an arithmetic number, because the mean of its divisors is an integer number (599545440).

Almost surely, 2^6604220394 is an apocalyptic number.

6604220394 is an abundant number, since it is smaller than the sum of its proper divisors (7784870166).

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

6604220394 is a wasteful number, since it uses less digits than its factorization.

6604220394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2049914 (or 2049911 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 6604220394 is about 81266.3546247769. The cubic root of 6604220394 is about 1876.1771944124.

It can be divided in two parts, 66042 and 20394, that added together give a square (86436 = 294²).

The spelling of 6604220394 in words is "six billion, six hundred four million, two hundred twenty thousand, three hundred ninety-four".