1644116304 has 20 divisors (see below), whose sum is σ = 4247300576. Its totient is φ = 548038752.

The previous prime is 1644116297. The next prime is 1644116317. The reversal of 1644116304 is 4036114461.

It is a super-3 number, since 3×1644116304³ (a number of 29 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 17126164 + ... + 17126259.

Almost surely, 2^1644116304 is an apocalyptic number.

It is an amenable number.

1644116304 is an abundant number, since it is smaller than the sum of its proper divisors (2603184272).

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

1644116304 is a wasteful number, since it uses less digits than its factorization.

1644116304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34252434 (or 34252428 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 1644116304 is about 40547.7040533740. The cubic root of 1644116304 is about 1180.2595196691.

The spelling of 1644116304 in words is "one billion, six hundred forty-four million, one hundred sixteen thousand, three hundred four".