394605361 has 4 divisors (see below), whose sum is σ = 404229924. Its totient is φ = 384980800.

The previous prime is 394605359. The next prime is 394605371. The reversal of 394605361 is 163506493.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22848400 + 371756961 = 4780^2 + 19281^2 .

It is a cyclic number.

It is not a de Polignac number, because 394605361 - 2¹ = 394605359 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 394605361.

It is not an unprimeable number, because it can be changed into a prime (394605301) 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, 4812220 + ... + 4812301.

It is an arithmetic number, because the mean of its divisors is an integer number (101057481).

Almost surely, 2^394605361 is an apocalyptic number.

It is an amenable number.

394605361 is a deficient number, since it is larger than the sum of its proper divisors (9624563).

394605361 is an equidigital number, since it uses as much as digits as its factorization.

394605361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9624562.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 394605361 is about 19864.6762118087. The cubic root of 394605361 is about 733.4789597616.

The spelling of 394605361 in words is "three hundred ninety-four million, six hundred five thousand, three hundred sixty-one".