494483619840 has 240 divisors, whose sum is σ = 1808348341632. Its totient is φ = 113024434176.

The previous prime is 494483619811. The next prime is 494483619853. The reversal of 494483619840 is 48916384494.

It is a tau number, because it is divible by the number of its divisors (240).

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

It is a congruent number.

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, 1576602 + ... + 1864038.

Almost surely, 2^494483619840 is an apocalyptic number.

494483619840 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 494483619840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (904174170816).

494483619840 is an abundant number, since it is smaller than the sum of its proper divisors (1313864721792).

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

494483619840 is an equidigital number, since it uses as much as digits as its factorization.

494483619840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287480 (or 287454 counting only the distinct ones).

The product of its (nonzero) digits is 23887872, while the sum is 60.

The spelling of 494483619840 in words is "four hundred ninety-four billion, four hundred eighty-three million, six hundred nineteen thousand, eight hundred forty".