394888000 has 112 divisors (see below), whose sum is σ = 1053443664. Its totient is φ = 145766400.

The previous prime is 394887979. The next prime is 394888027. The reversal of 394888000 is 888493.

It can be written as a sum of positive squares in 8 ways, for example, as 324864576 + 70023424 = 18024^2 + 8368^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 102102 + ... + 105898.

It is an arithmetic number, because the mean of its divisors is an integer number (9405747).

Almost surely, 2^394888000 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 394888000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (526721832).

394888000 is an abundant number, since it is smaller than the sum of its proper divisors (658555664).

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

394888000 is a wasteful number, since it uses less digits than its factorization.

394888000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3837 (or 3817 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 394888000 is about 19871.7890487998. The cubic root of 394888000 is about 733.6540378727.

The spelling of 394888000 in words is "three hundred ninety-four million, eight hundred eighty-eight thousand".