4319940672 has 84 divisors (see below), whose sum is σ = 12396269340. Its totient is φ = 1438359552.

The previous prime is 4319940649. The next prime is 4319940673. The reversal of 4319940672 is 2760499134.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 708411456 + 3611529216 = 26616^2 + 60096^2 .

It is a super-3 number, since 3×4319940672³ (a number of 30 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (4319940673) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 577468 + ... + 584900.

It is an arithmetic number, because the mean of its divisors is an integer number (147574635).

Almost surely, 2^4319940672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4319940672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6198134670).

4319940672 is an abundant number, since it is smaller than the sum of its proper divisors (8076328668).

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

4319940672 is a wasteful number, since it uses less digits than its factorization.

4319940672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8460 (or 8447 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 4319940672 is about 65726.2555756830. The cubic root of 4319940672 is about 1628.6431143224.

The spelling of 4319940672 in words is "four billion, three hundred nineteen million, nine hundred forty thousand, six hundred seventy-two".