338147429 has 2 divisors, whose sum is σ = 338147430. Its totient is φ = 338147428.

The previous prime is 338147423. The next prime is 338147431. The reversal of 338147429 is 924741833.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 334816804 + 3330625 = 18298^2 + 1825^2 .

It is an emirp because it is prime and its reverse (924741833) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 338147429 - 2²⁴ = 321370213 is a prime.

It is a super-2 number, since 2×338147429² = 228687367478620082, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 338147431, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (338147423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169073714 + 169073715.

It is an arithmetic number, because the mean of its divisors is an integer number (169073715).

Almost surely, 2^338147429 is an apocalyptic number.

It is an amenable number.

338147429 is a deficient number, since it is larger than the sum of its proper divisors (1).

338147429 is an equidigital number, since it uses as much as digits as its factorization.

338147429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 41.

The square root of 338147429 is about 18388.7854139418. The cubic root of 338147429 is about 696.6832405521.

The spelling of 338147429 in words is "three hundred thirty-eight million, one hundred forty-seven thousand, four hundred twenty-nine".