394313898 has 64 divisors (see below), whose sum is σ = 876873600. Its totient is φ = 117216000.

The previous prime is 394313891. The next prime is 394313917. The reversal of 394313898 is 898313493.

It is not an unprimeable number, because it can be changed into a prime (394313891) 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, 993036 + ... + 993432.

It is an arithmetic number, because the mean of its divisors is an integer number (13701150).

Almost surely, 2^394313898 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 394313898, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (438436800).

394313898 is an abundant number, since it is smaller than the sum of its proper divisors (482559702).

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

394313898 is a wasteful number, since it uses less digits than its factorization.

394313898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663.

The product of its digits is 559872, while the sum is 48.

The square root of 394313898 is about 19857.3386434336. The cubic root of 394313898 is about 733.2983281271.

The spelling of 394313898 in words is "three hundred ninety-four million, three hundred thirteen thousand, eight hundred ninety-eight".