499492840 has 192 divisors, whose sum is σ = 1475470080. Its totient is φ = 148684800.

The previous prime is 499492813. The next prime is 499492841. The reversal of 499492840 is 48294994.

It is a super-2 number, since 2×499492840² = 498986194422531200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499492841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 778920 + ... + 779560.

It is an arithmetic number, because the mean of its divisors is an integer number (7684740).

Almost surely, 2^499492840 is an apocalyptic number.

499492840 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 499492840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (737735040).

499492840 is an abundant number, since it is smaller than the sum of its proper divisors (975977240).

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

499492840 is a wasteful number, since it uses less digits than its factorization.

499492840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704 (or 689 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 49.

The square root of 499492840 is about 22349.3364554745. The cubic root of 499492840 is about 793.4320797610.

The spelling of 499492840 in words is "four hundred ninety-nine million, four hundred ninety-two thousand, eight hundred forty".