394976071200 has 144 divisors (see below), whose sum is σ = 1286417976480. Its totient is φ = 105263800320.

The previous prime is 394976071183. The next prime is 394976071309. The reversal of 394976071200 is 2170679493.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 394976071200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4024311 + ... + 4121289.

It is an arithmetic number, because the mean of its divisors is an integer number (8933458170).

Almost surely, 2^394976071200 is an apocalyptic number.

394976071200 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 394976071200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (643208988240).

394976071200 is an abundant number, since it is smaller than the sum of its proper divisors (891441905280).

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

394976071200 is a wasteful number, since it uses less digits than its factorization.

394976071200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98699 (or 98686 counting only the distinct ones).

The product of its (nonzero) digits is 571536, while the sum is 48.

The spelling of 394976071200 in words is "three hundred ninety-four billion, nine hundred seventy-six million, seventy-one thousand, two hundred".