382726385 has 4 divisors (see below), whose sum is σ = 459271668. Its totient is φ = 306181104.

The previous prime is 382726361. The next prime is 382726387. The reversal of 382726385 is 583627283.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 583627283 = 569 ⋅1025707.

It can be written as a sum of positive squares in 2 ways, for example, as 80209936 + 302516449 = 8956^2 + 17393^2 .

It is a cyclic number.

It is not a de Polignac number, because 382726385 - 2¹⁰ = 382725361 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (382726387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38272634 + ... + 38272643.

It is an arithmetic number, because the mean of its divisors is an integer number (114817917).

Almost surely, 2^382726385 is an apocalyptic number.

It is an amenable number.

382726385 is a deficient number, since it is larger than the sum of its proper divisors (76545283).

382726385 is an equidigital number, since it uses as much as digits as its factorization.

382726385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76545282.

The product of its digits is 483840, while the sum is 44.

The square root of 382726385 is about 19563.3940051311. The cubic root of 382726385 is about 726.0437665080.

The spelling of 382726385 in words is "three hundred eighty-two million, seven hundred twenty-six thousand, three hundred eighty-five".