240003 has 10 divisors (see below), whose sum is σ = 358644. Its totient is φ = 159948.

The previous prime is 239999. The next prime is 240007. The reversal of 240003 is 300042.

240003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (239999) and next prime (240007).

It is not a de Polignac number, because 240003 - 2² = 239999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (240007) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1401 + ... + 1562.

2²⁴⁰⁰⁰³ is an apocalyptic number.

240003 is a deficient number, since it is larger than the sum of its proper divisors (118641).

240003 is an equidigital number, since it uses as much as digits as its factorization.

240003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2975 (or 2966 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

The square root of 240003 is about 489.9010104092. The cubic root of 240003 is about 62.1449090540.

Adding to 240003 its reverse (300042), we get a palindrome (540045).

The spelling of 240003 in words is "two hundred forty thousand, three", and thus it is an iban number.