394140 has 24 divisors (see below), whose sum is σ = 1103760. Its totient is φ = 105088.

The previous prime is 394129. The next prime is 394153. The reversal of 394140 is 41493.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

394140 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 7 ways as a sum of consecutive naturals, for example, 3225 + ... + 3344.

It is an arithmetic number, because the mean of its divisors is an integer number (45990).

2³⁹⁴¹⁴⁰ is an apocalyptic number.

394140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

394140 is an abundant number, since it is smaller than the sum of its proper divisors (709620).

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

394140 is a wasteful number, since it uses less digits than its factorization.

394140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6581 (or 6579 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 394140 is about 627.8057024271. The cubic root of 394140 is about 73.3190513969.

The spelling of 394140 in words is "three hundred ninety-four thousand, one hundred forty".