487468820 has 24 divisors (see below), whose sum is σ = 1024434600. Its totient is φ = 194844672.

The previous prime is 487468811. The next prime is 487468837. The reversal of 487468820 is 28864784.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2676496 + 484792324 = 1636^2 + 22018^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21596 + ... + 37964.

It is an arithmetic number, because the mean of its divisors is an integer number (42684775).

Almost surely, 2^487468820 is an apocalyptic number.

It is an amenable number.

487468820 is an abundant number, since it is smaller than the sum of its proper divisors (536965780).

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

487468820 is a wasteful number, since it uses less digits than its factorization.

487468820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17867 (or 17865 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 47.

The square root of 487468820 is about 22078.6960665706. The cubic root of 487468820 is about 787.0136787377.

The spelling of 487468820 in words is "four hundred eighty-seven million, four hundred sixty-eight thousand, eight hundred twenty".