4636448140 has 12 divisors (see below), whose sum is σ = 9736541136. Its totient is φ = 1854579248.

The previous prime is 4636448111. The next prime is 4636448149. The reversal of 4636448140 is 418446364.

It is a junction number, because it is equal to n+sod(n) for n = 4636448093 and 4636448102.

It is not an unprimeable number, because it can be changed into a prime (4636448149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115911184 + ... + 115911223.

It is an arithmetic number, because the mean of its divisors is an integer number (811378428).

Almost surely, 2^4636448140 is an apocalyptic number.

It is an amenable number.

4636448140 is an abundant number, since it is smaller than the sum of its proper divisors (5100092996).

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

4636448140 is a wasteful number, since it uses less digits than its factorization.

4636448140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231822416 (or 231822414 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 40.

The square root of 4636448140 is about 68091.4689223254. The cubic root of 4636448140 is about 1667.4844865479.

The spelling of 4636448140 in words is "four billion, six hundred thirty-six million, four hundred forty-eight thousand, one hundred forty".