487239140 has 12 divisors (see below), whose sum is σ = 1023202236. Its totient is φ = 194895648.

The previous prime is 487239139. The next prime is 487239191. The reversal of 487239140 is 41932784.

It can be written as a sum of positive squares in 2 ways, for example, as 348046336 + 139192804 = 18656^2 + 11798^2 .

It is a junction number, because it is equal to n+sod(n) for n = 487239094 and 487239103.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12180959 + ... + 12180998.

It is an arithmetic number, because the mean of its divisors is an integer number (85266853).

Almost surely, 2^487239140 is an apocalyptic number.

It is an amenable number.

487239140 is an abundant number, since it is smaller than the sum of its proper divisors (535963096).

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

487239140 is a wasteful number, since it uses less digits than its factorization.

487239140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24361966 (or 24361964 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 487239140 is about 22073.4940596182. The cubic root of 487239140 is about 786.8900539427.

The spelling of 487239140 in words is "four hundred eighty-seven million, two hundred thirty-nine thousand, one hundred forty".