220788413 has 2 divisors, whose sum is σ = 220788414. Its totient is φ = 220788412.

The previous prime is 220788391. The next prime is 220788497. The reversal of 220788413 is 314887022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 157076089 + 63712324 = 12533^2 + 7982^2 .

It is a cyclic number.

It is not a de Polignac number, because 220788413 - 2¹⁴ = 220772029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220788013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110394206 + 110394207.

It is an arithmetic number, because the mean of its divisors is an integer number (110394207).

Almost surely, 2^220788413 is an apocalyptic number.

It is an amenable number.

220788413 is a deficient number, since it is larger than the sum of its proper divisors (1).

220788413 is an equidigital number, since it uses as much as digits as its factorization.

220788413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 220788413 is about 14858.9506022464. The cubic root of 220788413 is about 604.4013503196.

The spelling of 220788413 in words is "two hundred twenty million, seven hundred eighty-eight thousand, four hundred thirteen".