489455956 has 24 divisors (see below), whose sum is σ = 939175776. Its totient is φ = 221346720.

The previous prime is 489455951. The next prime is 489455957. The reversal of 489455956 is 659554984.

It is a junction number, because it is equal to n+sod(n) for n = 489455897 and 489455906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489455951) 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, 19566 + ... + 36901.

It is an arithmetic number, because the mean of its divisors is an integer number (39132324).

Almost surely, 2^489455956 is an apocalyptic number.

It is an amenable number.

489455956 is a deficient number, since it is larger than the sum of its proper divisors (449719820).

489455956 is a wasteful number, since it uses less digits than its factorization.

489455956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56679 (or 56677 counting only the distinct ones).

The product of its digits is 7776000, while the sum is 55.

The square root of 489455956 is about 22123.6515069281. The cubic root of 489455956 is about 788.0816328289.

The spelling of 489455956 in words is "four hundred eighty-nine million, four hundred fifty-five thousand, nine hundred fifty-six".