499989860 has 12 divisors (see below), whose sum is σ = 1049978748. Its totient is φ = 199995936.

The previous prime is 499989859. The next prime is 499989877. The reversal of 499989860 is 68989994.

It can be written as a sum of positive squares in 2 ways, for example, as 226021156 + 273968704 = 15034^2 + 16552^2 .

It is a junction number, because it is equal to n+sod(n) for n = 499989793 and 499989802.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12499727 + ... + 12499766.

It is an arithmetic number, because the mean of its divisors is an integer number (87498229).

Almost surely, 2^499989860 is an apocalyptic number.

It is an amenable number.

499989860 is an abundant number, since it is smaller than the sum of its proper divisors (549988888).

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

499989860 is a wasteful number, since it uses less digits than its factorization.

499989860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24999502 (or 24999500 counting only the distinct ones).

The product of its (nonzero) digits is 10077696, while the sum is 62.

The square root of 499989860 is about 22360.4530365554. The cubic root of 499989860 is about 793.6951605323.

The spelling of 499989860 in words is "four hundred ninety-nine million, nine hundred eighty-nine thousand, eight hundred sixty".