382256729 has 2 divisors, whose sum is σ = 382256730. Its totient is φ = 382256728.

The previous prime is 382256701. The next prime is 382256737. The reversal of 382256729 is 927652283.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 237006025 + 145250704 = 15395^2 + 12052^2 .

It is an emirp because it is prime and its reverse (927652283) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 382256729 - 2¹⁶ = 382191193 is a prime.

It is a super-2 number, since 2×382256729² = 292240413731558882, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 382256729.

It is not a weakly prime, because it can be changed into another prime (382256789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191128364 + 191128365.

It is an arithmetic number, because the mean of its divisors is an integer number (191128365).

Almost surely, 2^382256729 is an apocalyptic number.

It is an amenable number.

382256729 is a deficient number, since it is larger than the sum of its proper divisors (1).

382256729 is an equidigital number, since it uses as much as digits as its factorization.

382256729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 44.

The square root of 382256729 is about 19551.3868817534. The cubic root of 382256729 is about 725.7466609691.

The spelling of 382256729 in words is "three hundred eighty-two million, two hundred fifty-six thousand, seven hundred twenty-nine".