220335140 has 12 divisors (see below), whose sum is σ = 462703836. Its totient is φ = 88134048.

The previous prime is 220335133. The next prime is 220335161. The reversal of 220335140 is 41533022.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 76143076 + 144192064 = 8726^2 + 12008^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 11016757 = 220335140 / (2 + 2 + 0 + 3 + 3 + 5 + 1 + 4 + 0).

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, 5508359 + ... + 5508398.

It is an arithmetic number, because the mean of its divisors is an integer number (38558653).

Almost surely, 2^220335140 is an apocalyptic number.

220335140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220335140 is an abundant number, since it is smaller than the sum of its proper divisors (242368696).

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

220335140 is a wasteful number, since it uses less digits than its factorization.

220335140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11016766 (or 11016764 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 220335140 is about 14843.6902419850. The cubic root of 220335140 is about 603.9874600850.

Adding to 220335140 its reverse (41533022), we get a palindrome (261868162).

The spelling of 220335140 in words is "two hundred twenty million, three hundred thirty-five thousand, one hundred forty".