489398964 has 24 divisors (see below), whose sum is σ = 1142581440. Its totient is φ = 163040064.

The previous prime is 489398951. The next prime is 489398969. The reversal of 489398964 is 469893984.

It is a super-2 number, since 2×489398964² = 479022691928546592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 489398898 and 489398907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489398969) 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, 12297 + ... + 33615.

It is an arithmetic number, because the mean of its divisors is an integer number (47607560).

Almost surely, 2^489398964 is an apocalyptic number.

It is an amenable number.

489398964 is an abundant number, since it is smaller than the sum of its proper divisors (653182476).

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

489398964 is a wasteful number, since it uses less digits than its factorization.

489398964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23239 (or 23237 counting only the distinct ones).

The product of its digits is 13436928, while the sum is 60.

The square root of 489398964 is about 22122.3634361250. The cubic root of 489398964 is about 788.0510437015.

The spelling of 489398964 in words is "four hundred eighty-nine million, three hundred ninety-eight thousand, nine hundred sixty-four".