203442 has 16 divisors (see below), whose sum is σ = 417312. Its totient is φ = 66080.

The previous prime is 203431. The next prime is 203449. The reversal of 203442 is 244302.

It is a happy number.

203442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 203442.

It is not an unprimeable number, because it can be changed into a prime (203449) by changing a digit.

203442 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, 168 + ... + 659.

It is an arithmetic number, because the mean of its divisors is an integer number (26082).

2²⁰³⁴⁴² is an apocalyptic number.

203442 is an abundant number, since it is smaller than the sum of its proper divisors (213870).

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

203442 is a wasteful number, since it uses less digits than its factorization.

203442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 203442 is about 451.0454522551. The cubic root of 203442 is about 58.8139307083.

Adding to 203442 its reverse (244302), we get a palindrome (447744).

The spelling of 203442 in words is "two hundred three thousand, four hundred forty-two", and thus it is an iban number.