338424857 has 2 divisors, whose sum is σ = 338424858. Its totient is φ = 338424856.

The previous prime is 338424833. The next prime is 338424869. The reversal of 338424857 is 758424833.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 324144016 + 14280841 = 18004^2 + 3779^2 .

It is a cyclic number.

It is not a de Polignac number, because 338424857 - 2⁸ = 338424601 is a prime.

It is a super-2 number, since 2×338424857² = 229062767670940898, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (338424887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169212428 + 169212429.

It is an arithmetic number, because the mean of its divisors is an integer number (169212429).

Almost surely, 2^338424857 is an apocalyptic number.

It is an amenable number.

338424857 is a deficient number, since it is larger than the sum of its proper divisors (1).

338424857 is an equidigital number, since it uses as much as digits as its factorization.

338424857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 645120, while the sum is 44.

The square root of 338424857 is about 18396.3272693220. The cubic root of 338424857 is about 696.8737162517.

The spelling of 338424857 in words is "three hundred thirty-eight million, four hundred twenty-four thousand, eight hundred fifty-seven".