338865149 has 4 divisors (see below), whose sum is σ = 387274464. Its totient is φ = 290455836.

The previous prime is 338865139. The next prime is 338865169. The reversal of 338865149 is 941568833.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 941568833 = 2087 ⋅451159.

It is a cyclic number.

It is not a de Polignac number, because 338865149 - 2²⁰ = 337816573 is a prime.

It is a super-2 number, since 2×338865149² = 229659178413584402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (338865119) 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 in 3 ways as a sum of consecutive naturals, for example, 24204647 + ... + 24204660.

It is an arithmetic number, because the mean of its divisors is an integer number (96818616).

Almost surely, 2^338865149 is an apocalyptic number.

It is an amenable number.

338865149 is a deficient number, since it is larger than the sum of its proper divisors (48409315).

338865149 is an equidigital number, since it uses as much as digits as its factorization.

338865149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48409314.

The product of its digits is 622080, while the sum is 47.

The square root of 338865149 is about 18408.2902247873. The cubic root of 338865149 is about 697.1757970540.

The spelling of 338865149 in words is "three hundred thirty-eight million, eight hundred sixty-five thousand, one hundred forty-nine".