499997760 has 224 divisors, whose sum is σ = 1674888192. Its totient is φ = 126197760.

The previous prime is 499997731. The next prime is 499997783. The reversal of 499997760 is 67799994.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a junction number, because it is equal to n+sod(n) for n = 499997694 and 499997703.

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, 1577122 + ... + 1577438.

Almost surely, 2^499997760 is an apocalyptic number.

499997760 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 499997760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (837444096).

499997760 is an abundant number, since it is smaller than the sum of its proper divisors (1174890432).

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

499997760 is a wasteful number, since it uses less digits than its factorization.

499997760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421 (or 411 counting only the distinct ones).

The product of its (nonzero) digits is 7715736, while the sum is 60.

The square root of 499997760 is about 22360.6296870191. The cubic root of 499997760 is about 793.6993407229.

The spelling of 499997760 in words is "four hundred ninety-nine million, nine hundred ninety-seven thousand, seven hundred sixty".