4391343936 has 448 divisors, whose sum is σ = 15605760000. Its totient is φ = 1209116160.

The previous prime is 4391343917. The next prime is 4391343941. The reversal of 4391343936 is 6393431934.

It is a tau number, because it is divible by the number of its divisors (448).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 4391343891 and 4391343900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18373705 + ... + 18373943.

Almost surely, 2^4391343936 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 4391343936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7802880000).

4391343936 is an abundant number, since it is smaller than the sum of its proper divisors (11214416064).

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

4391343936 is a wasteful number, since it uses less digits than its factorization.

4391343936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312 (or 282 counting only the distinct ones).

The product of its digits is 629856, while the sum is 45.

The square root of 4391343936 is about 66267.2161479566. The cubic root of 4391343936 is about 1637.5672755686.

The spelling of 4391343936 in words is "four billion, three hundred ninety-one million, three hundred forty-three thousand, nine hundred thirty-six".