487788990 has 256 divisors, whose sum is σ = 1437004800. Its totient is φ = 104767488.

The previous prime is 487788989. The next prime is 487788997. The reversal of 487788990 is 99887784.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487788997) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 8267581 + ... + 8267639.

It is an arithmetic number, because the mean of its divisors is an integer number (5613300).

Almost surely, 2^487788990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 487788990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (718502400).

487788990 is an abundant number, since it is smaller than the sum of its proper divisors (949215810).

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

487788990 is a wasteful number, since it uses less digits than its factorization.

487788990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171.

The product of its (nonzero) digits is 8128512, while the sum is 60.

The square root of 487788990 is about 22085.9455310385. The cubic root of 487788990 is about 787.1859448142.

The spelling of 487788990 in words is "four hundred eighty-seven million, seven hundred eighty-eight thousand, nine hundred ninety".