203240 has 16 divisors (see below), whose sum is σ = 457380. Its totient is φ = 81280.

The previous prime is 203233. The next prime is 203249. The reversal of 203240 is 42302.

203240 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 188356 + 14884 = 434^2 + 122^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 203240.

It is not an unprimeable number, because it can be changed into a prime (203249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2501 + ... + 2580.

2²⁰³²⁴⁰ is an apocalyptic number.

203240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203240 is an abundant number, since it is smaller than the sum of its proper divisors (254140).

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

203240 is a wasteful number, since it uses less digits than its factorization.

203240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5092 (or 5088 counting only the distinct ones).

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

The square root of 203240 is about 450.8214724256. The cubic root of 203240 is about 58.7944585766.

Adding to 203240 its reverse (42302), we get a palindrome (245542).

The spelling of 203240 in words is "two hundred three thousand, two hundred forty", and thus it is an iban number.