485638944 has 96 divisors (see below), whose sum is σ = 1461156480. Its totient is φ = 138350592.

The previous prime is 485638943. The next prime is 485638957. The reversal of 485638944 is 449836584.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (485638943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 290142 + ... + 291810.

It is an arithmetic number, because the mean of its divisors is an integer number (15220380).

Almost surely, 2^485638944 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 485638944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (730578240).

485638944 is an abundant number, since it is smaller than the sum of its proper divisors (975517536).

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

485638944 is a wasteful number, since it uses less digits than its factorization.

485638944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2122 (or 2114 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 51.

The square root of 485638944 is about 22037.2172471934. The cubic root of 485638944 is about 786.0276715908.

The spelling of 485638944 in words is "four hundred eighty-five million, six hundred thirty-eight thousand, nine hundred forty-four".