4643609904 has 160 divisors (see below), whose sum is σ = 13693687040. Its totient is φ = 1505806848.

The previous prime is 4643609903. The next prime is 4643609911. The reversal of 4643609904 is 4099063464.

It is a happy number.

It is a super-2 number, since 2×4643609904² = 43126225881053778432, 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 4643609904.

It is not an unprimeable number, because it can be changed into a prime (4643609903) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8488959 + ... + 8489505.

It is an arithmetic number, because the mean of its divisors is an integer number (85585544).

Almost surely, 2^4643609904 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 4643609904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6846843520).

4643609904 is an abundant number, since it is smaller than the sum of its proper divisors (9050077136).

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

4643609904 is a wasteful number, since it uses less digits than its factorization.

4643609904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064 (or 1052 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 45.

The square root of 4643609904 is about 68144.0379196889. The cubic root of 4643609904 is about 1668.3426137471.

The spelling of 4643609904 in words is "four billion, six hundred forty-three million, six hundred nine thousand, nine hundred four".