489618692 has 6 divisors (see below), whose sum is σ = 856832718. Its totient is φ = 244809344.

The previous prime is 489618677. The next prime is 489618697. The reversal of 489618692 is 296816984.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 426670336 + 62948356 = 20656^2 + 7934^2 .

It is not an unprimeable number, because it can be changed into a prime (489618697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61202333 + ... + 61202340.

It is an arithmetic number, because the mean of its divisors is an integer number (142805453).

Almost surely, 2^489618692 is an apocalyptic number.

It is an amenable number.

489618692 is a deficient number, since it is larger than the sum of its proper divisors (367214026).

489618692 is a wasteful number, since it uses less digits than its factorization.

489618692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122404677 (or 122404675 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 53.

The square root of 489618692 is about 22127.3290751505. The cubic root of 489618692 is about 788.1689645150.

The spelling of 489618692 in words is "four hundred eighty-nine million, six hundred eighteen thousand, six hundred ninety-two".