4461638052 has 24 divisors (see below), whose sum is σ = 10769472000. Its totient is φ = 1435929376.

The previous prime is 4461638047. The next prime is 4461638053. The reversal of 4461638052 is 2508361644.

It is a self number, because there is not a number n which added to its sum of digits gives 4461638052.

It is not an unprimeable number, because it can be changed into a prime (4461638053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6410052 + ... + 6410747.

It is an arithmetic number, because the mean of its divisors is an integer number (448728000).

Almost surely, 2^4461638052 is an apocalyptic number.

It is an amenable number.

4461638052 is an abundant number, since it is smaller than the sum of its proper divisors (6307833948).

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

4461638052 is a wasteful number, since it uses less digits than its factorization.

4461638052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12820835 (or 12820833 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 4461638052 is about 66795.4942492381. The cubic root of 4461638052 is about 1646.2588088931.

Adding to 4461638052 its reverse (2508361644), we get a palindrome (6969999696).

The spelling of 4461638052 in words is "four billion, four hundred sixty-one million, six hundred thirty-eight thousand, fifty-two".