394641010 has 8 divisors (see below), whose sum is σ = 710353836. Its totient is φ = 157856400.

The previous prime is 394641007. The next prime is 394641011. The reversal of 394641010 is 10146493.

It can be written as a sum of positive squares in 2 ways, for example, as 337199769 + 57441241 = 18363^2 + 7579^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 394641010.

It is not an unprimeable number, because it can be changed into a prime (394641011) 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 3 ways as a sum of consecutive naturals, for example, 19732041 + ... + 19732060.

Almost surely, 2^394641010 is an apocalyptic number.

394641010 is a deficient number, since it is larger than the sum of its proper divisors (315712826).

394641010 is a wasteful number, since it uses less digits than its factorization.

394641010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39464108.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 394641010 is about 19865.5734878206. The cubic root of 394641010 is about 733.5010468109.

The spelling of 394641010 in words is "three hundred ninety-four million, six hundred forty-one thousand, ten".