394582440960 has 440 divisors, whose sum is σ = 1416868714800. Its totient is φ = 105005776896.

The previous prime is 394582440907. The next prime is 394582440961. The reversal of 394582440960 is 69044285493.

394582440960 is a `hidden beast` number, since 3 + 94 + 58 + 2 + 440 + 9 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 394582440897 and 394582440906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394582440961) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 376150516 + ... + 376151564.

It is an arithmetic number, because the mean of its divisors is an integer number (3220156170).

Almost surely, 2^394582440960 is an apocalyptic number.

394582440960 is a gapful number since it is divisible by the number (30) 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 394582440960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (708434357400).

394582440960 is an abundant number, since it is smaller than the sum of its proper divisors (1022286273840).

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

394582440960 is a wasteful number, since it uses less digits than its factorization.

394582440960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1993 (or 1966 counting only the distinct ones).

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

The spelling of 394582440960 in words is "three hundred ninety-four billion, five hundred eighty-two million, four hundred forty thousand, nine hundred sixty".