489929900 has 72 divisors (see below), whose sum is σ = 1114824480. Its totient is φ = 186531840.

The previous prime is 489929899. The next prime is 489929939. The reversal of 489929900 is 9929984.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 636716 + ... + 637484.

Almost surely, 2^489929900 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 489929900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (557412240).

489929900 is an abundant number, since it is smaller than the sum of its proper divisors (624894580).

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

489929900 is a wasteful number, since it uses less digits than its factorization.

489929900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1083 (or 1076 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 50.

The square root of 489929900 is about 22134.3601669441. The cubic root of 489929900 is about 788.3359192907.

The spelling of 489929900 in words is "four hundred eighty-nine million, nine hundred twenty-nine thousand, nine hundred".