499785000 has 320 divisors, whose sum is σ = 1842160320. Its totient is φ = 111360000.

The previous prime is 499784969. The next prime is 499785019. The reversal of 499785000 is 587994.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2144884 + ... + 2145116.

It is an arithmetic number, because the mean of its divisors is an integer number (5756751).

Almost surely, 2^499785000 is an apocalyptic number.

499785000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 499785000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (921080160).

499785000 is an abundant number, since it is smaller than the sum of its proper divisors (1342375320).

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

499785000 is a wasteful number, since it uses less digits than its factorization.

499785000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286 (or 267 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 499785000 is about 22355.8717119239. The cubic root of 499785000 is about 793.5867459320.

The spelling of 499785000 in words is "four hundred ninety-nine million, seven hundred eighty-five thousand".