220420023 has 16 divisors (see below), whose sum is σ = 299525472. Its totient is φ = 144144000.

The previous prime is 220420003. The next prime is 220420043. The reversal of 220420023 is 320024022.

It is an interprime number because it is at equal distance from previous prime (220420003) and next prime (220420043).

It is not a de Polignac number, because 220420023 - 2¹⁰ = 220418999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220419984 and 220420011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220420003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75613 + ... + 78473.

It is an arithmetic number, because the mean of its divisors is an integer number (18720342).

Almost surely, 2^220420023 is an apocalyptic number.

220420023 is a deficient number, since it is larger than the sum of its proper divisors (79105449).

220420023 is a wasteful number, since it uses less digits than its factorization.

220420023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3346.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 220420023 is about 14846.5491950150. The cubic root of 220420023 is about 604.0650111667.

Adding to 220420023 its reverse (320024022), we get a palindrome (540444045).

The spelling of 220420023 in words is "two hundred twenty million, four hundred twenty thousand, twenty-three".