4643406820 has 36 divisors (see below), whose sum is σ = 10558949940. Its totient is φ = 1714487424.

The previous prime is 4643406811. The next prime is 4643406839. The reversal of 4643406820 is 286043464.

It can be written as a sum of positive squares in 6 ways, for example, as 2116736064 + 2526670756 = 46008^2 + 50266^2 .

It is a super-2 number, since 2×4643406820² = 43122453792045024800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4643406820.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 683515 + ... + 690274.

It is an arithmetic number, because the mean of its divisors is an integer number (293304165).

Almost surely, 2^4643406820 is an apocalyptic number.

It is an amenable number.

4643406820 is an abundant number, since it is smaller than the sum of its proper divisors (5915543120).

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

4643406820 is a wasteful number, since it uses less digits than its factorization.

4643406820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1373824 (or 1373809 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 37.

The square root of 4643406820 is about 68142.5477950451. The cubic root of 4643406820 is about 1668.3182922502.

The spelling of 4643406820 in words is "four billion, six hundred forty-three million, four hundred six thousand, eight hundred twenty".