487587840 has 168 divisors, whose sum is σ = 1610611968. Its totient is φ = 125829120.

The previous prime is 487587811. The next prime is 487587869. The reversal of 487587840 is 48785784.

It is an interprime number because it is at equal distance from previous prime (487587811) and next prime (487587869).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15728625 + ... + 15728655.

It is an arithmetic number, because the mean of its divisors is an integer number (9586976).

Almost surely, 2^487587840 is an apocalyptic number.

487587840 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 487587840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (805305984).

487587840 is an abundant number, since it is smaller than the sum of its proper divisors (1123024128).

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

487587840 is an frugal number, since it uses more digits than its factorization.

487587840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79 (or 41 counting only the distinct ones).

The product of its (nonzero) digits is 2007040, while the sum is 51.

The square root of 487587840 is about 22081.3912605162. The cubic root of 487587840 is about 787.0777257370.

The spelling of 487587840 in words is "four hundred eighty-seven million, five hundred eighty-seven thousand, eight hundred forty".