394018325 has 6 divisors (see below), whose sum is σ = 488582754. Its totient is φ = 315214640.

The previous prime is 394018319. The next prime is 394018327. The reversal of 394018325 is 523810493.

It can be written as a sum of positive squares in 3 ways, for example, as 73393489 + 320624836 = 8567^2 + 17906^2 .

It is not a de Polignac number, because 394018325 - 2²² = 389824021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394018327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7880342 + ... + 7880391.

It is an arithmetic number, because the mean of its divisors is an integer number (81430459).

Almost surely, 2^394018325 is an apocalyptic number.

It is an amenable number.

394018325 is a deficient number, since it is larger than the sum of its proper divisors (94564429).

394018325 is a wasteful number, since it uses less digits than its factorization.

394018325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15760743 (or 15760738 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 394018325 is about 19849.8948359935. The cubic root of 394018325 is about 733.1150584305.

The spelling of 394018325 in words is "three hundred ninety-four million, eighteen thousand, three hundred twenty-five".