398245373252 has 6 divisors (see below), whose sum is σ = 696929403198. Its totient is φ = 199122686624.

The previous prime is 398245373231. The next prime is 398245373263. The reversal of 398245373252 is 252373542893.

It can be written as a sum of positive squares in only one way, i.e., 387063156736 + 11182216516 = 622144^2 + 105746^2 .

It is a junction number, because it is equal to n+sod(n) for n = 398245373194 and 398245373203.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 49780671653 + ... + 49780671660.

It is an arithmetic number, because the mean of its divisors is an integer number (116154900533).

Almost surely, 2^398245373252 is an apocalyptic number.

It is an amenable number.

398245373252 is a deficient number, since it is larger than the sum of its proper divisors (298684029946).

398245373252 is a wasteful number, since it uses less digits than its factorization.

398245373252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99561343317 (or 99561343315 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 53.

The spelling of 398245373252 in words is "three hundred ninety-eight billion, two hundred forty-five million, three hundred seventy-three thousand, two hundred fifty-two".