485131920 has 320 divisors, whose sum is σ = 1878213120. Its totient is φ = 100859904.

The previous prime is 485131919. The next prime is 485131937. The reversal of 485131920 is 29131584.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2118366 + ... + 2118594.

It is an arithmetic number, because the mean of its divisors is an integer number (5869416).

Almost surely, 2^485131920 is an apocalyptic number.

485131920 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 485131920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (939106560).

485131920 is an abundant number, since it is smaller than the sum of its proper divisors (1393081200).

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

485131920 is a wasteful number, since it uses less digits than its factorization.

485131920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362 (or 356 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 485131920 is about 22025.7104312211. The cubic root of 485131920 is about 785.7540295677.

The spelling of 485131920 in words is "four hundred eighty-five million, one hundred thirty-one thousand, nine hundred twenty".