499297920 has 256 divisors, whose sum is σ = 1776660480. Its totient is φ = 118231040.

The previous prime is 499297919. The next prime is 499297927. The reversal of 499297920 is 29792994.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (499297927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 992389 + ... + 992891.

It is an arithmetic number, because the mean of its divisors is an integer number (6940080).

Almost surely, 2^499297920 is an apocalyptic number.

499297920 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 499297920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (888330240).

499297920 is an abundant number, since it is smaller than the sum of its proper divisors (1277362560).

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

499297920 is a wasteful number, since it uses less digits than its factorization.

499297920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583 (or 571 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 51.

The square root of 499297920 is about 22344.9752740969. The cubic root of 499297920 is about 793.3288577924.

The spelling of 499297920 in words is "four hundred ninety-nine million, two hundred ninety-seven thousand, nine hundred twenty".