396542 has 16 divisors (see below), whose sum is σ = 641520. Its totient is φ = 183168.

The previous prime is 396541. The next prime is 396547. The reversal of 396542 is 245693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3584 + ... + 3692.

It is an arithmetic number, because the mean of its divisors is an integer number (40095).

2³⁹⁶⁵⁴² is an apocalyptic number.

396542 is a deficient number, since it is larger than the sum of its proper divisors (244978).

396542 is a wasteful number, since it uses less digits than its factorization.

396542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235.

The product of its digits is 6480, while the sum is 29.

The square root of 396542 is about 629.7158089170. The cubic root of 396542 is about 73.4676921577.

The spelling of 396542 in words is "three hundred ninety-six thousand, five hundred forty-two".