394073328000 has 1024 divisors, whose sum is σ = 1545546562560. Its totient is φ = 87736320000.

The previous prime is 394073327953. The next prime is 394073328049. The reversal of 394073328000 is 823370493.

It is a self number, because there is not a number n which added to its sum of digits gives 394073328000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 385967490 + ... + 385968510.

It is an arithmetic number, because the mean of its divisors is an integer number (1509322815).

Almost surely, 2^394073328000 is an apocalyptic number.

394073328000 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 394073328000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (772773281280).

394073328000 is an abundant number, since it is smaller than the sum of its proper divisors (1151473234560).

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

394073328000 is a wasteful number, since it uses less digits than its factorization.

394073328000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124 (or 1102 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 39.

Adding to 394073328000 its reverse (823370493), we get a palindrome (394896698493).

The spelling of 394073328000 in words is "three hundred ninety-four billion, seventy-three million, three hundred twenty-eight thousand".