394834660650 has 192 divisors, whose sum is σ = 1096746053760. Its totient is φ = 104444121600.

The previous prime is 394834660631. The next prime is 394834660651. The reversal of 394834660650 is 56066438493.

394834660650 is a `hidden beast` number, since 3 + 9 + 483 + 46 + 60 + 65 + 0 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (394834660651) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 171890302 + ... + 171892598.

It is an arithmetic number, because the mean of its divisors is an integer number (5712219030).

Almost surely, 2^394834660650 is an apocalyptic number.

394834660650 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 394834660650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (548373026880).

394834660650 is an abundant number, since it is smaller than the sum of its proper divisors (701911393110).

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

394834660650 is a wasteful number, since it uses less digits than its factorization.

394834660650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3286 (or 3275 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 54.

The spelling of 394834660650 in words is "three hundred ninety-four billion, eight hundred thirty-four million, six hundred sixty thousand, six hundred fifty".