203420 has 24 divisors (see below), whose sum is σ = 488544. Its totient is φ = 69696.

The previous prime is 203419. The next prime is 203429. The reversal of 203420 is 24302.

203420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 587 + ... + 866.

It is an arithmetic number, because the mean of its divisors is an integer number (20356).

2²⁰³⁴²⁰ is an apocalyptic number.

203420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203420 is an abundant number, since it is smaller than the sum of its proper divisors (285124).

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

203420 is a wasteful number, since it uses less digits than its factorization.

203420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1469 (or 1467 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 203420 is about 451.0210638097. The cubic root of 203420 is about 58.8118106067.

Adding to 203420 its reverse (24302), we get a palindrome (227722).

The spelling of 203420 in words is "two hundred three thousand, four hundred twenty", and thus it is an iban number.