499649424 has 80 divisors (see below), whose sum is σ = 1360520064. Its totient is φ = 157696000.

The previous prime is 499649393. The next prime is 499649429. The reversal of 499649424 is 424946994.

It is not an unprimeable number, because it can be changed into a prime (499649429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109264 + ... + 113744.

Almost surely, 2^499649424 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 499649424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (680260032).

499649424 is an abundant number, since it is smaller than the sum of its proper divisors (860870640).

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

499649424 is a wasteful number, since it uses less digits than its factorization.

499649424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4616 (or 4610 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 51.

The square root of 499649424 is about 22352.8392827399. The cubic root of 499649424 is about 793.5149810419.

The spelling of 499649424 in words is "four hundred ninety-nine million, six hundred forty-nine thousand, four hundred twenty-four".