220642104 has 16 divisors (see below), whose sum is σ = 551605320. Its totient is φ = 73547360.

The previous prime is 220642091. The next prime is 220642183. The reversal of 220642104 is 401246022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4596687 + ... + 4596734.

Almost surely, 2^220642104 is an apocalyptic number.

220642104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

220642104 is an abundant number, since it is smaller than the sum of its proper divisors (330963216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220642104 is a wasteful number, since it uses less digits than its factorization.

220642104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9193430 (or 9193426 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 220642104 is about 14854.0265248181. The cubic root of 220642104 is about 604.2678153872.

Adding to 220642104 its reverse (401246022), we get a palindrome (621888126).

The spelling of 220642104 in words is "two hundred twenty million, six hundred forty-two thousand, one hundred four".