220404937 has 2 divisors, whose sum is σ = 220404938. Its totient is φ = 220404936.

The previous prime is 220404907. The next prime is 220404973. The reversal of 220404937 is 739404022.

Together with next prime (220404973) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 198838201 + 21566736 = 14101^2 + 4644^2 .

It is a cyclic number.

It is not a de Polignac number, because 220404937 - 2¹⁵ = 220372169 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 220404899 and 220404908.

It is not a weakly prime, because it can be changed into another prime (220404907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110202468 + 110202469.

It is an arithmetic number, because the mean of its divisors is an integer number (110202469).

Almost surely, 2^220404937 is an apocalyptic number.

It is an amenable number.

220404937 is a deficient number, since it is larger than the sum of its proper divisors (1).

220404937 is an equidigital number, since it uses as much as digits as its factorization.

220404937 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 220404937 is about 14846.0411221308. The cubic root of 220404937 is about 604.0512297015.

Adding to 220404937 its reverse (739404022), we get a palindrome (959808959).

The spelling of 220404937 in words is "two hundred twenty million, four hundred four thousand, nine hundred thirty-seven".