220402403 has 16 divisors (see below), whose sum is σ = 241777536. Its totient is φ = 199687680.

The previous prime is 220402397. The next prime is 220402421. The reversal of 220402403 is 304204022.

It is a cyclic number.

It is not a de Polignac number, because 220402403 - 2²² = 216208099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220402423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256751 + ... + 257607.

It is an arithmetic number, because the mean of its divisors is an integer number (15111096).

Almost surely, 2^220402403 is an apocalyptic number.

220402403 is a deficient number, since it is larger than the sum of its proper divisors (21375133).

220402403 is a wasteful number, since it uses less digits than its factorization.

220402403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 220402403 is about 14845.9557792686. The cubic root of 220402403 is about 604.0489147629.

Adding to 220402403 its reverse (304204022), we get a palindrome (524606425).

The spelling of 220402403 in words is "two hundred twenty million, four hundred two thousand, four hundred three".