394942744 has 48 divisors (see below), whose sum is σ = 863379000. Its totient is φ = 168876288.

The previous prime is 394942703. The next prime is 394942747. The reversal of 394942744 is 447249493.

It is a junction number, because it is equal to n+sod(n) for n = 394942694 and 394942703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394942747) 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 11 ways as a sum of consecutive naturals, for example, 231607 + ... + 233305.

Almost surely, 2^394942744 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 394942744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (431689500).

394942744 is an abundant number, since it is smaller than the sum of its proper divisors (468436256).

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

394942744 is a wasteful number, since it uses less digits than its factorization.

394942744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2312 (or 2301 counting only the distinct ones).

The product of its digits is 870912, while the sum is 46.

The square root of 394942744 is about 19873.1664311453. The cubic root of 394942744 is about 733.6879388783.

The spelling of 394942744 in words is "three hundred ninety-four million, nine hundred forty-two thousand, seven hundred forty-four".