499779280 has 240 divisors, whose sum is σ = 1580148864. Its totient is φ = 141972480.

The previous prime is 499779257. The next prime is 499779281. The reversal of 499779280 is 82977994.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499779281) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 6326281 + ... + 6326359.

Almost surely, 2^499779280 is an apocalyptic number.

499779280 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 499779280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (790074432).

499779280 is an abundant number, since it is smaller than the sum of its proper divisors (1080369584).

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

499779280 is a wasteful number, since it uses less digits than its factorization.

499779280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 55.

The square root of 499779280 is about 22355.7437809615. The cubic root of 499779280 is about 793.5837184078.

The spelling of 499779280 in words is "four hundred ninety-nine million, seven hundred seventy-nine thousand, two hundred eighty".