499859456 has 30 divisors (see below), whose sum is σ = 999721170. Its totient is φ = 249921536.

The previous prime is 499859447. The next prime is 499859461. The reversal of 499859456 is 654958994.

It can be written as a sum of positive squares in only one way, i.e., 256000000 + 243859456 = 16000^2 + 15616^2 .

It is a junction number, because it is equal to n+sod(n) for n = 499859395 and 499859404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1130 + ... + 31638.

It is an arithmetic number, because the mean of its divisors is an integer number (33324039).

Almost surely, 2^499859456 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 499859456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (499860585).

499859456 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

499859456 is an frugal number, since it uses more digits than its factorization.

499859456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30537 (or 30511 counting only the distinct ones).

The product of its digits is 13996800, while the sum is 59.

The square root of 499859456 is about 22357.5368947476. The cubic root of 499859456 is about 793.6261524507.

The spelling of 499859456 in words is "four hundred ninety-nine million, eight hundred fifty-nine thousand, four hundred fifty-six".