499659780 has 48 divisors (see below), whose sum is σ = 1400241024. Its totient is φ = 133128960.

The previous prime is 499659709. The next prime is 499659793. The reversal of 499659780 is 87956994.

It is a self number, because there is not a number n which added to its sum of digits gives 499659780.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86049 + ... + 91671.

It is an arithmetic number, because the mean of its divisors is an integer number (29171688).

Almost surely, 2^499659780 is an apocalyptic number.

It is an amenable number.

499659780 is an abundant number, since it is smaller than the sum of its proper divisors (900581244).

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

499659780 is a wasteful number, since it uses less digits than its factorization.

499659780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7116 (or 7114 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 57.

The square root of 499659780 is about 22353.0709299640. The cubic root of 499659780 is about 793.5204632753.

The spelling of 499659780 in words is "four hundred ninety-nine million, six hundred fifty-nine thousand, seven hundred eighty".