394248492 has 72 divisors (see below), whose sum is σ = 1123530800. Its totient is φ = 119465280.

The previous prime is 394248409. The next prime is 394248511. The reversal of 394248492 is 294842493.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2017 + ... + 28152.

Almost surely, 2^394248492 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 394248492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (561765400).

394248492 is an abundant number, since it is smaller than the sum of its proper divisors (729282308).

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

394248492 is a wasteful number, since it uses less digits than its factorization.

394248492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30204 (or 30185 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The square root of 394248492 is about 19855.6916777029. The cubic root of 394248492 is about 733.2577811053.

The spelling of 394248492 in words is "three hundred ninety-four million, two hundred forty-eight thousand, four hundred ninety-two".