394542 has 24 divisors (see below), whose sum is σ = 892944. Its totient is φ = 125664.

The previous prime is 394529. The next prime is 394549. The reversal of 394542 is 245493.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394549) by changing a digit.

394542 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 11 ways as a sum of consecutive naturals, for example, 63 + ... + 890.

It is an arithmetic number, because the mean of its divisors is an integer number (37206).

2³⁹⁴⁵⁴² is an apocalyptic number.

394542 is an abundant number, since it is smaller than the sum of its proper divisors (498402).

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

394542 is a wasteful number, since it uses less digits than its factorization.

394542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 984 (or 981 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 394542 is about 628.1257835816. The cubic root of 394542 is about 73.3439699906.

The spelling of 394542 in words is "three hundred ninety-four thousand, five hundred forty-two".