396042 has 16 divisors (see below), whose sum is σ = 799200. Its totient is φ = 130832.

The previous prime is 396041. The next prime is 396043. The reversal of 396042 is 240693.

It is an interprime number because it is at equal distance from previous prime (396041) and next prime (396043).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (396041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 673 + ... + 1115.

It is an arithmetic number, because the mean of its divisors is an integer number (49950).

2³⁹⁶⁰⁴² is an apocalyptic number.

396042 is an abundant number, since it is smaller than the sum of its proper divisors (403158).

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

396042 is a wasteful number, since it uses less digits than its factorization.

396042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 396042 is about 629.3186792079. The cubic root of 396042 is about 73.4368006875.

The spelling of 396042 in words is "three hundred ninety-six thousand, forty-two".