220343120 has 40 divisors (see below), whose sum is σ = 542436264. Its totient is φ = 82952192.

The previous prime is 220343119. The next prime is 220343129. The reversal of 220343120 is 21343022.

It can be written as a sum of positive squares in 4 ways, for example, as 21307456 + 199035664 = 4616^2 + 14108^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220343129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79649 + ... + 82368.

Almost surely, 2^220343120 is an apocalyptic number.

220343120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220343120 is an abundant number, since it is smaller than the sum of its proper divisors (322093144).

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

220343120 is a wasteful number, since it uses less digits than its factorization.

220343120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162047 (or 162041 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 220343120 is about 14843.9590406333. The cubic root of 220343120 is about 603.9947516466.

Adding to 220343120 its reverse (21343022), we get a palindrome (241686142).

The spelling of 220343120 in words is "two hundred twenty million, three hundred forty-three thousand, one hundred twenty".