394824312 has 24 divisors (see below), whose sum is σ = 1069316040. Its totient is φ = 131608080.

The previous prime is 394824307. The next prime is 394824319. The reversal of 394824312 is 213428493.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394824319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2741764 + ... + 2741907.

It is an arithmetic number, because the mean of its divisors is an integer number (44554835).

Almost surely, 2^394824312 is an apocalyptic number.

It is an amenable number.

394824312 is an abundant number, since it is smaller than the sum of its proper divisors (674491728).

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

394824312 is a wasteful number, since it uses less digits than its factorization.

394824312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5483683 (or 5483676 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 394824312 is about 19870.1865114548. The cubic root of 394824312 is about 733.6145942241.

The spelling of 394824312 in words is "three hundred ninety-four million, eight hundred twenty-four thousand, three hundred twelve".