355228369 has 2 divisors, whose sum is σ = 355228370. Its totient is φ = 355228368.

The previous prime is 355228343. The next prime is 355228373. The reversal of 355228369 is 963822553.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 319944769 + 35283600 = 17887^2 + 5940^2 .

It is a cyclic number.

It is not a de Polignac number, because 355228369 - 2⁷ = 355228241 is a prime.

It is a super-2 number, since 2×355228369² = 252374388284800322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (355228669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177614184 + 177614185.

It is an arithmetic number, because the mean of its divisors is an integer number (177614185).

Almost surely, 2^355228369 is an apocalyptic number.

It is an amenable number.

355228369 is a deficient number, since it is larger than the sum of its proper divisors (1).

355228369 is an equidigital number, since it uses as much as digits as its factorization.

355228369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 388800, while the sum is 43.

The square root of 355228369 is about 18847.5029911126. The cubic root of 355228369 is about 708.2216746840.

The spelling of 355228369 in words is "three hundred fifty-five million, two hundred twenty-eight thousand, three hundred sixty-nine".