4643662320 has 240 divisors, whose sum is σ = 17908675200. Its totient is φ = 1066452480.

The previous prime is 4643662313. The next prime is 4643662351. The reversal of 4643662320 is 232663464.

4643662320 is a `hidden beast` number, since 4 + 6 + 4 + 3 + 6 + 623 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 135051 + ... + 165909.

It is an arithmetic number, because the mean of its divisors is an integer number (74619480).

Almost surely, 2^4643662320 is an apocalyptic number.

4643662320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4643662320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8954337600).

4643662320 is an abundant number, since it is smaller than the sum of its proper divisors (13265012880).

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

4643662320 is a wasteful number, since it uses less digits than its factorization.

4643662320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30908 (or 30899 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 36.

The square root of 4643662320 is about 68144.4225157129. The cubic root of 4643662320 is about 1668.3488910126.

The spelling of 4643662320 in words is "four billion, six hundred forty-three million, six hundred sixty-two thousand, three hundred twenty".