338468729 has 2 divisors, whose sum is σ = 338468730. Its totient is φ = 338468728.

The previous prime is 338468723. The next prime is 338468749. The reversal of 338468729 is 927864833.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 300953104 + 37515625 = 17348^2 + 6125^2 .

It is a cyclic number.

It is not a de Polignac number, because 338468729 - 2²⁸ = 70033273 is a prime.

It is a super-2 number, since 2×338468729² = 229122161021750882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (338468723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169234364 + 169234365.

It is an arithmetic number, because the mean of its divisors is an integer number (169234365).

Almost surely, 2^338468729 is an apocalyptic number.

It is an amenable number.

338468729 is a deficient number, since it is larger than the sum of its proper divisors (1).

338468729 is an equidigital number, since it uses as much as digits as its factorization.

338468729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 50.

The square root of 338468729 is about 18397.5196426040. The cubic root of 338468729 is about 696.9038282269.

The spelling of 338468729 in words is "three hundred thirty-eight million, four hundred sixty-eight thousand, seven hundred twenty-nine".