220007072 has 12 divisors (see below), whose sum is σ = 433138986. Its totient is φ = 110003520.

The previous prime is 220007071. The next prime is 220007089. The reversal of 220007072 is 270700022.

It can be written as a sum of positive squares in only one way, i.e., 169937296 + 50069776 = 13036^2 + 7076^2 .

It is a super-2 number, since 2×220007072² = 96806223460026368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (220007071) 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 as a sum of consecutive naturals, namely, 3437579 + ... + 3437642.

Almost surely, 2^220007072 is an apocalyptic number.

It is an amenable number.

220007072 is a deficient number, since it is larger than the sum of its proper divisors (213131914).

220007072 is an equidigital number, since it uses as much as digits as its factorization.

220007072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6875231 (or 6875223 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 20.

The square root of 220007072 is about 14832.6353693469. The cubic root of 220007072 is about 603.6875421446.

Adding to 220007072 its reverse (270700022), we get a palindrome (490707094).

The spelling of 220007072 in words is "two hundred twenty million, seven thousand, seventy-two".