394465818 has 8 divisors (see below), whose sum is σ = 788931648. Its totient is φ = 131488604.

The previous prime is 394465817. The next prime is 394465823. The reversal of 394465818 is 818564493.

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

394465818 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (394465811) 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, 32872146 + ... + 32872157.

It is an arithmetic number, because the mean of its divisors is an integer number (98616456).

Almost surely, 2^394465818 is an apocalyptic number.

394465818 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

394465818 is a wasteful number, since it uses less digits than its factorization.

394465818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65744308.

The product of its digits is 829440, while the sum is 48.

The square root of 394465818 is about 19861.1635610807. The cubic root of 394465818 is about 733.3924903150.

The spelling of 394465818 in words is "three hundred ninety-four million, four hundred sixty-five thousand, eight hundred eighteen".