394639296 has 84 divisors (see below), whose sum is σ = 1059908472. Its totient is φ = 129586176.

The previous prime is 394639243. The next prime is 394639303. The reversal of 394639296 is 692936493.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2281066 + ... + 2281238.

It is an arithmetic number, because the mean of its divisors is an integer number (12617958).

Almost surely, 2^394639296 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 394639296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (529954236).

394639296 is an abundant number, since it is smaller than the sum of its proper divisors (665269176).

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

394639296 is a wasteful number, since it uses less digits than its factorization.

394639296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406 (or 287 counting only the distinct ones).

The product of its digits is 1889568, while the sum is 51.

The square root of 394639296 is about 19865.5303478160. The cubic root of 394639296 is about 733.4999848984.

The spelling of 394639296 in words is "three hundred ninety-four million, six hundred thirty-nine thousand, two hundred ninety-six".