394735896 has 128 divisors (see below), whose sum is σ = 1141862400. Its totient is φ = 126213120.

The previous prime is 394735889. The next prime is 394735897. The reversal of 394735896 is 698537493.

394735896 is a `hidden beast` number, since 39 + 473 + 58 + 96 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394735897) 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 31 ways as a sum of consecutive naturals, for example, 1118056 + ... + 1118408.

It is an arithmetic number, because the mean of its divisors is an integer number (8920800).

Almost surely, 2^394735896 is an apocalyptic number.

394735896 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 394735896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (570931200).

394735896 is an abundant number, since it is smaller than the sum of its proper divisors (747126504).

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

394735896 is a wasteful number, since it uses less digits than its factorization.

394735896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566 (or 556 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 54.

The square root of 394735896 is about 19867.9615461677. The cubic root of 394735896 is about 733.5598288442.

It can be divided in two parts, 39473 and 5896, that added together give a square (45369 = 213²).

The spelling of 394735896 in words is "three hundred ninety-four million, seven hundred thirty-five thousand, eight hundred ninety-six".