40203 has 8 divisors (see below), whose sum is σ = 59600. Its totient is φ = 26784.

The previous prime is 40193. The next prime is 40213. The reversal of 40203 is 30204.

40203 is digitally balanced in base 2 and base 4, because in such bases 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 (40193) and next prime (40213).

It is not a de Polignac number, because 40203 - 2¹² = 36107 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40213) 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, 718 + ... + 771.

It is an arithmetic number, because the mean of its divisors is an integer number (7450).

2⁴⁰²⁰³ is an apocalyptic number.

40203 is a deficient number, since it is larger than the sum of its proper divisors (19397).

40203 is a wasteful number, since it uses less digits than its factorization.

40203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1498 (or 1492 counting only the distinct ones).

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

The square root of 40203 is about 200.5068577381. The cubic root of 40203 is about 34.2572755247.

Adding to 40203 its reverse (30204), we get a palindrome (70407).

Subtracting from 40203 its reverse (30204), we obtain a palindrome (9999).

It can be divided in two parts, 40 and 203, that added together give a 5-th power (243 = 3⁵).

The spelling of 40203 in words is "forty thousand, two hundred three", and thus it is an iban number.