487640136 has 16 divisors (see below), whose sum is σ = 1219100400. Its totient is φ = 162546704.

The previous prime is 487640119. The next prime is 487640143. The reversal of 487640136 is 631046784.

It is a junction number, because it is equal to n+sod(n) for n = 487640094 and 487640103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10159146 + ... + 10159193.

It is an arithmetic number, because the mean of its divisors is an integer number (76193775).

Almost surely, 2^487640136 is an apocalyptic number.

It is an amenable number.

487640136 is an abundant number, since it is smaller than the sum of its proper divisors (731460264).

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

487640136 is a wasteful number, since it uses less digits than its factorization.

487640136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20318348 (or 20318344 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 487640136 is about 22082.5753932824. The cubic root of 487640136 is about 787.1058639458.

The spelling of 487640136 in words is "four hundred eighty-seven million, six hundred forty thousand, one hundred thirty-six".