394845000 has 160 divisors (see below), whose sum is σ = 1346194080. Its totient is φ = 95680000.

The previous prime is 394844959. The next prime is 394845007. The reversal of 394845000 is 548493.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (394845007) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 163804 + ... + 166196.

It is an arithmetic number, because the mean of its divisors is an integer number (8413713).

Almost surely, 2^394845000 is an apocalyptic number.

394845000 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 394845000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (673097040).

394845000 is an abundant number, since it is smaller than the sum of its proper divisors (951349080).

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

394845000 is a wasteful number, since it uses less digits than its factorization.

394845000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2433 (or 2414 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 394845000 is about 19870.7070835439. The cubic root of 394845000 is about 733.6274073102.

The spelling of 394845000 in words is "three hundred ninety-four million, eight hundred forty-five thousand".