489913944 has 32 divisors (see below), whose sum is σ = 1318999920. Its totient is φ = 150742656.

The previous prime is 489913943. The next prime is 489913951. The reversal of 489913944 is 449319984.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489913943) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 784807 + ... + 785430.

Almost surely, 2^489913944 is an apocalyptic number.

It is an amenable number.

489913944 is an abundant number, since it is smaller than the sum of its proper divisors (829085976).

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

489913944 is a wasteful number, since it uses less digits than its factorization.

489913944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1570259 (or 1570255 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 51.

The square root of 489913944 is about 22133.9997289238. Note that the first 3 decimals coincide. The cubic root of 489913944 is about 788.3273610429.

The spelling of 489913944 in words is "four hundred eighty-nine million, nine hundred thirteen thousand, nine hundred forty-four".