394439041 has 4 divisors (see below), whose sum is σ = 395230000. Its totient is φ = 393648084.

The previous prime is 394439039. The next prime is 394439051. The reversal of 394439041 is 140934493.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 394439041 - 2¹ = 394439039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (394439051) 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, 394731 + ... + 395728.

It is an arithmetic number, because the mean of its divisors is an integer number (98807500).

Almost surely, 2^394439041 is an apocalyptic number.

It is an amenable number.

394439041 is a deficient number, since it is larger than the sum of its proper divisors (790959).

394439041 is an equidigital number, since it uses as much as digits as its factorization.

394439041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790958.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 394439041 is about 19860.4894451270. The cubic root of 394439041 is about 733.3758953029.

It can be divided in two parts, 39443 and 9041, that added together give a palindrome (48484).

The spelling of 394439041 in words is "three hundred ninety-four million, four hundred thirty-nine thousand, forty-one".