394402000 has 160 divisors (see below), whose sum is σ = 1023684480. Its totient is φ = 146534400.

The previous prime is 394401941. The next prime is 394402007. The reversal of 394402000 is 204493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394402007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3685947 + ... + 3686053.

It is an arithmetic number, because the mean of its divisors is an integer number (6398028).

Almost surely, 2^394402000 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 394402000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (511842240).

394402000 is an abundant number, since it is smaller than the sum of its proper divisors (629282480).

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

394402000 is a wasteful number, since it uses less digits than its factorization.

394402000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246 (or 230 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 394402000 is about 19859.5568933448. The cubic root of 394402000 is about 733.3529379516.

Adding to 394402000 its reverse (204493), we get a palindrome (394606493).

The spelling of 394402000 in words is "three hundred ninety-four million, four hundred two thousand".