499659240 has 128 divisors (see below), whose sum is σ = 1638558720. Its totient is φ = 121344000.

The previous prime is 499659239. The next prime is 499659301. The reversal of 499659240 is 42956994.

It is a super-2 number, since 2×499659240² = 499318712234755200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 499659240.

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, 59290 + ... + 67190.

It is an arithmetic number, because the mean of its divisors is an integer number (12801240).

Almost surely, 2^499659240 is an apocalyptic number.

499659240 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 499659240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (819279360).

499659240 is an abundant number, since it is smaller than the sum of its proper divisors (1138899480).

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

499659240 is a wasteful number, since it uses less digits than its factorization.

499659240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7963 (or 7959 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 48.

The square root of 499659240 is about 22353.0588510834. The cubic root of 499659240 is about 793.5201774134.

The spelling of 499659240 in words is "four hundred ninety-nine million, six hundred fifty-nine thousand, two hundred forty".