499943220 has 96 divisors (see below), whose sum is σ = 1604026368. Its totient is φ = 113972352.

The previous prime is 499943179. The next prime is 499943237. The reversal of 499943220 is 22349994.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 184717 + ... + 187403.

It is an arithmetic number, because the mean of its divisors is an integer number (16708608).

Almost surely, 2^499943220 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 499943220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (802013184).

499943220 is an abundant number, since it is smaller than the sum of its proper divisors (1104083148).

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

499943220 is a wasteful number, since it uses less digits than its factorization.

499943220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3149 (or 3147 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 499943220 is about 22359.4100995532. The cubic root of 499943220 is about 793.6704806362.

The spelling of 499943220 in words is "four hundred ninety-nine million, nine hundred forty-three thousand, two hundred twenty".