394245359 has 4 divisors (see below), whose sum is σ = 394423680. Its totient is φ = 394067040.

The previous prime is 394245349. The next prime is 394245367. The reversal of 394245359 is 953542493.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 953542493 = 19 ⋅50186447.

It is a cyclic number.

It is not a de Polignac number, because 394245359 - 2¹⁶ = 394179823 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 (394245349) 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, 85802 + ... + 90279.

It is an arithmetic number, because the mean of its divisors is an integer number (98605920).

Almost surely, 2^394245359 is an apocalyptic number.

394245359 is a deficient number, since it is larger than the sum of its proper divisors (178321).

394245359 is a wasteful number, since it uses less digits than its factorization.

394245359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178320.

The product of its digits is 583200, while the sum is 44.

The square root of 394245359 is about 19855.6127832913. The cubic root of 394245359 is about 733.2558387578.

The spelling of 394245359 in words is "three hundred ninety-four million, two hundred forty-five thousand, three hundred fifty-nine".