220422403 has 4 divisors (see below), whose sum is σ = 223212640. Its totient is φ = 217632168.

The previous prime is 220422383. The next prime is 220422413. The reversal of 220422403 is 304224022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 220422403 - 2²⁵ = 186867971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220422413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1395000 + ... + 1395157.

It is an arithmetic number, because the mean of its divisors is an integer number (55803160).

Almost surely, 2^220422403 is an apocalyptic number.

220422403 is a deficient number, since it is larger than the sum of its proper divisors (2790237).

220422403 is an equidigital number, since it uses as much as digits as its factorization.

220422403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2790236.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 220422403 is about 14846.6293481046. The cubic root of 220422403 is about 604.0671853031.

Adding to 220422403 its reverse (304224022), we get a palindrome (524646425).

The spelling of 220422403 in words is "two hundred twenty million, four hundred twenty-two thousand, four hundred three".