352220369 has 2 divisors, whose sum is σ = 352220370. Its totient is φ = 352220368.

The previous prime is 352220359. The next prime is 352220371. The reversal of 352220369 is 963022253.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 245862400 + 106357969 = 15680^2 + 10313^2 .

It is an emirp because it is prime and its reverse (963022253) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 352220369 - 2¹⁶ = 352154833 is a prime.

It is a super-2 number, since 2×352220369² = 248118376676992322, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 352220371, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (352220359) 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, 176110184 + 176110185.

It is an arithmetic number, because the mean of its divisors is an integer number (176110185).

Almost surely, 2^352220369 is an apocalyptic number.

It is an amenable number.

352220369 is a deficient number, since it is larger than the sum of its proper divisors (1).

352220369 is an equidigital number, since it uses as much as digits as its factorization.

352220369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 352220369 is about 18767.5349739917. The cubic root of 352220369 is about 706.2169808981.

The spelling of 352220369 in words is "three hundred fifty-two million, two hundred twenty thousand, three hundred sixty-nine".