394530071 has 8 divisors (see below), whose sum is σ = 425312160. Its totient is φ = 363809952.

The previous prime is 394530061. The next prime is 394530089. The reversal of 394530071 is 170035493.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-394530071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394530061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1811 + ... + 28148.

It is an arithmetic number, because the mean of its divisors is an integer number (53164020).

Almost surely, 2^394530071 is an apocalyptic number.

394530071 is a deficient number, since it is larger than the sum of its proper divisors (30782089).

394530071 is a wasteful number, since it uses less digits than its factorization.

394530071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30985.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 394530071 is about 19862.7810489871. The cubic root of 394530071 is about 733.4323079682.

The spelling of 394530071 in words is "three hundred ninety-four million, five hundred thirty thousand, seventy-one".