494386925040 has 120 divisors (see below), whose sum is σ = 1662297043680. Its totient is φ = 131679217152.

The previous prime is 494386924961. The next prime is 494386925057. The reversal of 494386925040 is 40529683494.

494386925040 is a `hidden beast` number, since 4 + 9 + 4 + 386 + 9 + 250 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 194874 + ... + 1013286.

It is an arithmetic number, because the mean of its divisors is an integer number (13852475364).

Almost surely, 2^494386925040 is an apocalyptic number.

494386925040 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 494386925040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (831148521840).

494386925040 is an abundant number, since it is smaller than the sum of its proper divisors (1167910118640).

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

494386925040 is a wasteful number, since it uses less digits than its factorization.

494386925040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819271 (or 819262 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 54.

The spelling of 494386925040 in words is "four hundred ninety-four billion, three hundred eighty-six million, nine hundred twenty-five thousand, forty".