394320000 has 320 divisors, whose sum is σ = 1376559360. Its totient is φ = 99840000.

The previous prime is 394319999. The next prime is 394320029. The reversal of 394320000 is 23493.

It is a tau number, because it is divible by the number of its divisors (320).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 7439974 + ... + 7440026.

It is an arithmetic number, because the mean of its divisors is an integer number (4301748).

Almost surely, 2^394320000 is an apocalyptic number.

394320000 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 394320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (688279680).

394320000 is an abundant number, since it is smaller than the sum of its proper divisors (982239360).

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

394320000 is an equidigital number, since it uses as much as digits as its factorization.

394320000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121 (or 94 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 394320000 is about 19857.4922888063. The cubic root of 394320000 is about 733.3021107001.

Adding to 394320000 its reverse (23493), we get a palindrome (394343493).

The spelling of 394320000 in words is "three hundred ninety-four million, three hundred twenty thousand".