494989964 has 36 divisors (see below), whose sum is σ = 1012518360. Its totient is φ = 211115520.

The previous prime is 494989939. The next prime is 494990011. The reversal of 494989964 is 469989494.

It is a junction number, because it is equal to n+sod(n) for n = 494989897 and 494989906.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35372 + ... + 47340.

It is an arithmetic number, because the mean of its divisors is an integer number (28125510).

Almost surely, 2^494989964 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 494989964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (506259180).

494989964 is an abundant number, since it is smaller than the sum of its proper divisors (517528396).

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

494989964 is a wasteful number, since it uses less digits than its factorization.

494989964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12198 (or 12189 counting only the distinct ones).

The product of its digits is 20155392, while the sum is 62.

The square root of 494989964 is about 22248.3699178165. The cubic root of 494989964 is about 791.0406432245.

The spelling of 494989964 in words is "four hundred ninety-four million, nine hundred eighty-nine thousand, nine hundred sixty-four".