220268393 has 2 divisors, whose sum is σ = 220268394. Its totient is φ = 220268392.

The previous prime is 220268333. The next prime is 220268413. The reversal of 220268393 is 393862022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140469904 + 79798489 = 11852^2 + 8933^2 .

It is a cyclic number.

It is not a de Polignac number, because 220268393 - 2²⁶ = 153159529 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (220268333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110134196 + 110134197.

It is an arithmetic number, because the mean of its divisors is an integer number (110134197).

Almost surely, 2^220268393 is an apocalyptic number.

It is an amenable number.

220268393 is a deficient number, since it is larger than the sum of its proper divisors (1).

220268393 is an equidigital number, since it uses as much as digits as its factorization.

220268393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 220268393 is about 14841.4417426340. The cubic root of 220268393 is about 603.9264644844.

The spelling of 220268393 in words is "two hundred twenty million, two hundred sixty-eight thousand, three hundred ninety-three".