338648369 has 2 divisors, whose sum is σ = 338648370. Its totient is φ = 338648368.

The previous prime is 338648357. The next prime is 338648411. The reversal of 338648369 is 963846833.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 279558400 + 59089969 = 16720^2 + 7687^2 .

It is a cyclic number.

It is not a de Polignac number, because 338648369 - 2⁴ = 338648353 is a prime.

It is a super-2 number, since 2×338648369² = 229365435652720322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (338648339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169324184 + 169324185.

It is an arithmetic number, because the mean of its divisors is an integer number (169324185).

Almost surely, 2^338648369 is an apocalyptic number.

It is an amenable number.

338648369 is a deficient number, since it is larger than the sum of its proper divisors (1).

338648369 is an equidigital number, since it uses as much as digits as its factorization.

338648369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2239488, while the sum is 50.

The square root of 338648369 is about 18402.4011748467. The cubic root of 338648369 is about 697.0270987600.

The spelling of 338648369 in words is "three hundred thirty-eight million, six hundred forty-eight thousand, three hundred sixty-nine".