220744017 has 12 divisors (see below), whose sum is σ = 343379764. Its totient is φ = 135842400.

The previous prime is 220743973. The next prime is 220744019. The reversal of 220744017 is 710447022.

It is a happy number.

220744017 is a `hidden beast` number, since 2 + 207 + 440 + 17 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 137733696 + 83010321 = 11736^2 + 9111^2 .

It is not a de Polignac number, because 220744017 - 2⁶ = 220743953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220744019) 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 11 ways as a sum of consecutive naturals, for example, 943234 + ... + 943467.

Almost surely, 2^220744017 is an apocalyptic number.

It is an amenable number.

220744017 is a deficient number, since it is larger than the sum of its proper divisors (122635747).

220744017 is a wasteful number, since it uses less digits than its factorization.

220744017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1886720 (or 1886717 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 27.

The square root of 220744017 is about 14857.4566127585. The cubic root of 220744017 is about 604.3608367185.

The spelling of 220744017 in words is "two hundred twenty million, seven hundred forty-four thousand, seventeen".