394980 has 48 divisors (see below), whose sum is σ = 1149120. Its totient is φ = 101248.

The previous prime is 394969. The next prime is 394981. The reversal of 394980 is 89493.

It is not an unprimeable number, because it can be changed into a prime (394981) by changing a digit.

394980 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1627 + ... + 1853.

It is an arithmetic number, because the mean of its divisors is an integer number (23940).

2³⁹⁴⁹⁸⁰ is an apocalyptic number.

394980 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 394980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (574560).

394980 is an abundant number, since it is smaller than the sum of its proper divisors (754140).

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

394980 is a wasteful number, since it uses less digits than its factorization.

394980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268 (or 266 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 394980 is about 628.4743431517. The cubic root of 394980 is about 73.3711008398.

The spelling of 394980 in words is "three hundred ninety-four thousand, nine hundred eighty".