394437071 has 8 divisors (see below), whose sum is σ = 451792800. Its totient is φ = 337333248.

The previous prime is 394437037. The next prime is 394437083. The reversal of 394437071 is 170734493.

It is a happy number.

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

It is not a de Polignac number, because 394437071 - 2¹⁴ = 394420687 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 (394436071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59606 + ... + 65891.

It is an arithmetic number, because the mean of its divisors is an integer number (56474100).

Almost surely, 2^394437071 is an apocalyptic number.

394437071 is a deficient number, since it is larger than the sum of its proper divisors (57355729).

394437071 is a wasteful number, since it uses less digits than its factorization.

394437071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125953.

The product of its (nonzero) digits is 63504, while the sum is 38.

The square root of 394437071 is about 19860.4398491071. The cubic root of 394437071 is about 733.3746743682.

The spelling of 394437071 in words is "three hundred ninety-four million, four hundred thirty-seven thousand, seventy-one".