487333728 has 144 divisors (see below), whose sum is σ = 1614072096. Its totient is φ = 136581120.

The previous prime is 487333709. The next prime is 487333783. The reversal of 487333728 is 827333784.

It is a tau number, because it is divible by the number of its divisors (144).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 104568 + ... + 109128.

It is an arithmetic number, because the mean of its divisors is an integer number (11208834).

Almost surely, 2^487333728 is an apocalyptic number.

487333728 is a gapful number since it is divisible by the number (48) 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 487333728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (807036048).

487333728 is an abundant number, since it is smaller than the sum of its proper divisors (1126738368).

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

487333728 is a wasteful number, since it uses less digits than its factorization.

487333728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4637 (or 4626 counting only the distinct ones).

The product of its digits is 677376, while the sum is 45.

The square root of 487333728 is about 22075.6365253643. The cubic root of 487333728 is about 786.9409704464.

The spelling of 487333728 in words is "four hundred eighty-seven million, three hundred thirty-three thousand, seven hundred twenty-eight".