499958017440 has 192 divisors, whose sum is σ = 1800358721280. Its totient is φ = 114243747840.

The previous prime is 499958017409. The next prime is 499958017459. The reversal of 499958017440 is 44710859994.

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

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, 13047910 + ... + 13086170.

It is an arithmetic number, because the mean of its divisors is an integer number (9376868340).

Almost surely, 2^499958017440 is an apocalyptic number.

499958017440 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 499958017440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (900179360640).

499958017440 is an abundant number, since it is smaller than the sum of its proper divisors (1300400703840).

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

499958017440 is a wasteful number, since it uses less digits than its factorization.

499958017440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42175 (or 42167 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 60.

The spelling of 499958017440 in words is "four hundred ninety-nine billion, nine hundred fifty-eight million, seventeen thousand, four hundred forty".