220404007 has 2 divisors, whose sum is σ = 220404008. Its totient is φ = 220404006.

The previous prime is 220403993. The next prime is 220404011. The reversal of 220404007 is 700404022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220404007 - 2⁷ = 220403879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220404097) 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, 110202003 + 110202004.

It is an arithmetic number, because the mean of its divisors is an integer number (110202004).

Almost surely, 2^220404007 is an apocalyptic number.

220404007 is a deficient number, since it is larger than the sum of its proper divisors (1).

220404007 is an equidigital number, since it uses as much as digits as its factorization.

220404007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 220404007 is about 14846.0098006165. The cubic root of 220404007 is about 604.0503801010.

Adding to 220404007 its reverse (700404022), we get a palindrome (920808029).

The spelling of 220404007 in words is "two hundred twenty million, four hundred four thousand, seven".