394488 has 24 divisors (see below), whose sum is σ = 1068600. Its totient is φ = 131472.

The previous prime is 394481. The next prime is 394489. The reversal of 394488 is 884493.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394481) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2668 + ... + 2811.

It is an arithmetic number, because the mean of its divisors is an integer number (44525).

2³⁹⁴⁴⁸⁸ is an apocalyptic number.

It is an amenable number.

394488 is an abundant number, since it is smaller than the sum of its proper divisors (674112).

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

394488 is a wasteful number, since it uses less digits than its factorization.

394488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5491 (or 5484 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 394488 is about 628.0827970897. The cubic root of 394488 is about 73.3406237013.

The spelling of 394488 in words is "three hundred ninety-four thousand, four hundred eighty-eight".