6416444380 has 12 divisors (see below), whose sum is σ = 13474533240. Its totient is φ = 2566577744.

The previous prime is 6416444369. The next prime is 6416444383. The reversal of 6416444380 is 834446146.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6416444383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160411090 + ... + 160411129.

It is an arithmetic number, because the mean of its divisors is an integer number (1122877770).

Almost surely, 2^6416444380 is an apocalyptic number.

It is an amenable number.

6416444380 is an abundant number, since it is smaller than the sum of its proper divisors (7058088860).

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

6416444380 is a wasteful number, since it uses less digits than its factorization.

6416444380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320822228 (or 320822226 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 40.

The square root of 6416444380 is about 80102.7114397509. The cubic root of 6416444380 is about 1858.2243411625.

The spelling of 6416444380 in words is "six billion, four hundred sixteen million, four hundred forty-four thousand, three hundred eighty".