489472436 has 12 divisors (see below), whose sum is σ = 858839520. Its totient is φ = 244089720.

The previous prime is 489472427. The next prime is 489472439. The reversal of 489472436 is 634274984.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489472439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159920 + ... + 162951.

It is an arithmetic number, because the mean of its divisors is an integer number (71569960).

Almost surely, 2^489472436 is an apocalyptic number.

It is an amenable number.

489472436 is a deficient number, since it is larger than the sum of its proper divisors (369367084).

489472436 is a wasteful number, since it uses less digits than its factorization.

489472436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323254 (or 323252 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 47.

The square root of 489472436 is about 22124.0239558720. The cubic root of 489472436 is about 788.0904776421.

The spelling of 489472436 in words is "four hundred eighty-nine million, four hundred seventy-two thousand, four hundred thirty-six".