220310404 has 6 divisors (see below), whose sum is σ = 385543214. Its totient is φ = 110155200.

The previous prime is 220310401. The next prime is 220310417. The reversal of 220310404 is 404013022.

It can be written as a sum of positive squares in only one way, i.e., 216148804 + 4161600 = 14702^2 + 2040^2 .

It is a super-2 number, since 2×220310404² = 97073348221286432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (220310401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27538797 + ... + 27538804.

Almost surely, 2^220310404 is an apocalyptic number.

It is an amenable number.

220310404 is a deficient number, since it is larger than the sum of its proper divisors (165232810).

220310404 is a wasteful number, since it uses less digits than its factorization.

220310404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55077605 (or 55077603 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 220310404 is about 14842.8570026124. The cubic root of 220310404 is about 603.9648569527.

Adding to 220310404 its reverse (404013022), we get a palindrome (624323426).

The spelling of 220310404 in words is "two hundred twenty million, three hundred ten thousand, four hundred four".