489923800 has 24 divisors (see below), whose sum is σ = 1139073300. Its totient is φ = 195969440.

The previous prime is 489923773. The next prime is 489923807. The reversal of 489923800 is 8329984.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489923807) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1224610 + ... + 1225009.

Almost surely, 2^489923800 is an apocalyptic number.

489923800 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

489923800 is an abundant number, since it is smaller than the sum of its proper divisors (649149500).

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

489923800 is a wasteful number, since it uses less digits than its factorization.

489923800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2449635 (or 2449626 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 489923800 is about 22134.2223717031. Note that the first 3 decimals coincide. The cubic root of 489923800 is about 788.3326474831.

The spelling of 489923800 in words is "four hundred eighty-nine million, nine hundred twenty-three thousand, eight hundred".