392338385 has 4 divisors (see below), whose sum is σ = 470806068. Its totient is φ = 313870704.

The previous prime is 392338379. The next prime is 392338423. The reversal of 392338385 is 583833293.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 217887121 + 174451264 = 14761^2 + 13208^2 .

It is a cyclic number.

It is not a de Polignac number, because 392338385 - 2¹⁴ = 392322001 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39233834 + ... + 39233843.

It is an arithmetic number, because the mean of its divisors is an integer number (117701517).

Almost surely, 2^392338385 is an apocalyptic number.

It is an amenable number.

392338385 is a deficient number, since it is larger than the sum of its proper divisors (78467683).

392338385 is an equidigital number, since it uses as much as digits as its factorization.

392338385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78467682.

The product of its digits is 466560, while the sum is 44.

The square root of 392338385 is about 19807.5335415594. The cubic root of 392338385 is about 732.0716688813.

The spelling of 392338385 in words is "three hundred ninety-two million, three hundred thirty-eight thousand, three hundred eighty-five".