499958420 has 96 divisors (see below), whose sum is σ = 1167965568. Its totient is φ = 178601472.

The previous prime is 499958413. The next prime is 499958441. The reversal of 499958420 is 24859994.

It is a happy number.

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, 2202347 + ... + 2202573.

It is an arithmetic number, because the mean of its divisors is an integer number (12166308).

Almost surely, 2^499958420 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 499958420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (583982784).

499958420 is an abundant number, since it is smaller than the sum of its proper divisors (668007148).

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

499958420 is a wasteful number, since it uses less digits than its factorization.

499958420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489 (or 487 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 50.

The square root of 499958420 is about 22359.7499986024. The cubic root of 499958420 is about 793.6785239956.

The spelling of 499958420 in words is "four hundred ninety-nine million, nine hundred fifty-eight thousand, four hundred twenty".