489337816 has 32 divisors (see below), whose sum is σ = 1005984000. Its totient is φ = 221300640.

The previous prime is 489337813. The next prime is 489337819. The reversal of 489337816 is 618733984.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (489337813) and next prime (489337819).

It is a self number, because there is not a number n which added to its sum of digits gives 489337816.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489337813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3541 + ... + 31483.

It is an arithmetic number, because the mean of its divisors is an integer number (31437000).

Almost surely, 2^489337816 is an apocalyptic number.

It is an amenable number.

489337816 is an abundant number, since it is smaller than the sum of its proper divisors (516646184).

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

489337816 is a wasteful number, since it uses less digits than its factorization.

489337816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28159 (or 28155 counting only the distinct ones).

The product of its digits is 870912, while the sum is 49.

The square root of 489337816 is about 22120.9813525531. The cubic root of 489337816 is about 788.0182212970.

The spelling of 489337816 in words is "four hundred eighty-nine million, three hundred thirty-seven thousand, eight hundred sixteen".