398244187684 has 48 divisors (see below), whose sum is σ = 824066006400. Its totient is φ = 164768196096.

The previous prime is 398244187661. The next prime is 398244187687. The reversal of 398244187684 is 486781442893.

It is not an unprimeable number, because it can be changed into a prime (398244187687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6766327 + ... + 6824929.

It is an arithmetic number, because the mean of its divisors is an integer number (17168041800).

Almost surely, 2^398244187684 is an apocalyptic number.

It is an amenable number.

398244187684 is an abundant number, since it is smaller than the sum of its proper divisors (425821818716).

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

398244187684 is a wasteful number, since it uses less digits than its factorization.

398244187684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67012 (or 67010 counting only the distinct ones).

The product of its digits is 74317824, while the sum is 64.

The spelling of 398244187684 in words is "three hundred ninety-eight billion, two hundred forty-four million, one hundred eighty-seven thousand, six hundred eighty-four".