394580224 has 36 divisors (see below), whose sum is σ = 789638080. Its totient is φ = 196784640.

The previous prime is 394580213. The next prime is 394580227. The reversal of 394580224 is 422085493.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (394580227) 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, 110629 + ... + 114139.

Almost surely, 2^394580224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 394580224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (394819040).

394580224 is an abundant number, since it is smaller than the sum of its proper divisors (395057856).

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

394580224 is an equidigital number, since it uses as much as digits as its factorization.

394580224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3966 (or 3952 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 394580224 is about 19864.0434957236. The cubic root of 394580224 is about 733.4633848321.

The spelling of 394580224 in words is "three hundred ninety-four million, five hundred eighty thousand, two hundred twenty-four".