338670457 has 2 divisors, whose sum is σ = 338670458. Its totient is φ = 338670456.

The previous prime is 338670389. The next prime is 338670467. The reversal of 338670457 is 754076833.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 274366096 + 64304361 = 16564^2 + 8019^2 .

It is an emirp because it is prime and its reverse (754076833) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 338670457 - 2⁷ = 338670329 is a prime.

It is a super-2 number, since 2×338670457² = 229395356889177698, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (338670467) 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, 169335228 + 169335229.

It is an arithmetic number, because the mean of its divisors is an integer number (169335229).

Almost surely, 2^338670457 is an apocalyptic number.

It is an amenable number.

338670457 is a deficient number, since it is larger than the sum of its proper divisors (1).

338670457 is an equidigital number, since it uses as much as digits as its factorization.

338670457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 423360, while the sum is 43.

The square root of 338670457 is about 18403.0013041351. The cubic root of 338670457 is about 697.0422527282.

The spelling of 338670457 in words is "three hundred thirty-eight million, six hundred seventy thousand, four hundred fifty-seven".