220424403 has 8 divisors (see below), whose sum is σ = 299444688. Its totient is φ = 144176864.

The previous prime is 220424401. The next prime is 220424417. The reversal of 220424403 is 304424022.

220424403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220424403 - 2¹ = 220424401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220424403.

It is not an unprimeable number, because it can be changed into a prime (220424401) 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, 693000 + ... + 693317.

It is an arithmetic number, because the mean of its divisors is an integer number (37430586).

Almost surely, 2^220424403 is an apocalyptic number.

220424403 is a deficient number, since it is larger than the sum of its proper divisors (79020285).

220424403 is a wasteful number, since it uses less digits than its factorization.

220424403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1386373.

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 220424403 is about 14846.6967033074. The cubic root of 220424403 is about 604.0690122963.

Adding to 220424403 its reverse (304424022), we get a palindrome (524848425).

The spelling of 220424403 in words is "two hundred twenty million, four hundred twenty-four thousand, four hundred three".