499942680 has 64 divisors (see below), whose sum is σ = 1509948000. Its totient is φ = 132418560.

The previous prime is 499942657. The next prime is 499942699. The reversal of 499942680 is 86249994.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3900 + ... + 31860.

Almost surely, 2^499942680 is an apocalyptic number.

499942680 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 499942680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (754974000).

499942680 is an abundant number, since it is smaller than the sum of its proper divisors (1010005320).

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

499942680 is a wasteful number, since it uses less digits than its factorization.

499942680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28124 (or 28120 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 51.

The square root of 499942680 is about 22359.3980240972. The cubic root of 499942680 is about 793.6701948823.

The spelling of 499942680 in words is "four hundred ninety-nine million, nine hundred forty-two thousand, six hundred eighty".