4309943646 has 16 divisors (see below), whose sum is σ = 8620784784. Its totient is φ = 1436498304.

The previous prime is 4309943633. The next prime is 4309943647. The reversal of 4309943646 is 6463499034.

It is a super-3 number, since 3×4309943646³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 4309943595 and 4309943604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4309943647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36166 + ... + 99638.

It is an arithmetic number, because the mean of its divisors is an integer number (538799049).

Almost surely, 2^4309943646 is an apocalyptic number.

4309943646 is an abundant number, since it is smaller than the sum of its proper divisors (4310841138).

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

4309943646 is a wasteful number, since it uses less digits than its factorization.

4309943646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74795.

The product of its (nonzero) digits is 1679616, while the sum is 48.

The square root of 4309943646 is about 65650.1610508306. The cubic root of 4309943646 is about 1627.3858313829.

The spelling of 4309943646 in words is "four billion, three hundred nine million, nine hundred forty-three thousand, six hundred forty-six".