394842632652 has 144 divisors (see below), whose sum is σ = 1078369044480. Its totient is φ = 121093056000.

The previous prime is 394842632641. The next prime is 394842632669. The reversal of 394842632652 is 256236248493.

394842632652 is a `hidden beast` number, since 39 + 484 + 2 + 63 + 26 + 52 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 308711349 + ... + 308712627.

It is an arithmetic number, because the mean of its divisors is an integer number (7488673920).

Almost surely, 2^394842632652 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 394842632652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (539184522240).

394842632652 is an abundant number, since it is smaller than the sum of its proper divisors (683526411828).

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

394842632652 is a wasteful number, since it uses less digits than its factorization.

394842632652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2944 (or 2939 counting only the distinct ones).

The product of its digits is 14929920, while the sum is 54.

The spelling of 394842632652 in words is "three hundred ninety-four billion, eight hundred forty-two million, six hundred thirty-two thousand, six hundred fifty-two".