220403 has 2 divisors, whose sum is σ = 220404. Its totient is φ = 220402.

The previous prime is 220399. The next prime is 220411. The reversal of 220403 is 304022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220403 - 2² = 220399 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (220903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110201 + 110202.

It is an arithmetic number, because the mean of its divisors is an integer number (110202).

2²²⁰⁴⁰³ is an apocalyptic number.

220403 is a deficient number, since it is larger than the sum of its proper divisors (1).

220403 is an equidigital number, since it uses as much as digits as its factorization.

220403 is an evil number, because the sum of its binary digits is even.

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

The square root of 220403 is about 469.4709788688. The cubic root of 220403 is about 60.4049460154.

Adding to 220403 its reverse (304022), we get a palindrome (524425).

The spelling of 220403 in words is "two hundred twenty thousand, four hundred three", and thus it is an iban number.