392002385 has 4 divisors (see below), whose sum is σ = 470402868. Its totient is φ = 313601904.

The previous prime is 392002343. The next prime is 392002393. The reversal of 392002385 is 583200293.

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 96746896 + 295255489 = 9836^2 + 17183^2 .

It is a cyclic number.

It is not a de Polignac number, because 392002385 - 2¹⁶ = 391936849 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, 39200234 + ... + 39200243.

It is an arithmetic number, because the mean of its divisors is an integer number (117600717).

Almost surely, 2^392002385 is an apocalyptic number.

It is an amenable number.

392002385 is a deficient number, since it is larger than the sum of its proper divisors (78400483).

392002385 is an equidigital number, since it uses as much as digits as its factorization.

392002385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78400482.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 392002385 is about 19799.0501034772. The cubic root of 392002385 is about 731.8626262608.

The spelling of 392002385 in words is "three hundred ninety-two million, two thousand, three hundred eighty-five".