398575168 has 14 divisors (see below), whose sum is σ = 790922726. Its totient is φ = 199287552.

The previous prime is 398575157. The next prime is 398575169. The reversal of 398575168 is 861575893.

It can be written as a sum of positive squares in only one way, i.e., 261404224 + 137170944 = 16168^2 + 11712^2 .

It is not an unprimeable number, because it can be changed into a prime (398575169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3113805 + ... + 3113932.

Almost surely, 2^398575168 is an apocalyptic number.

It is an amenable number.

398575168 is a deficient number, since it is larger than the sum of its proper divisors (392347558).

398575168 is an equidigital number, since it uses as much as digits as its factorization.

398575168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6227749 (or 6227739 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 52.

The square root of 398575168 is about 19964.3474223427. The cubic root of 398575168 is about 735.9304045725.

The spelling of 398575168 in words is "three hundred ninety-eight million, five hundred seventy-five thousand, one hundred sixty-eight".