398819368 has 16 divisors (see below), whose sum is σ = 773572500. Its totient is φ = 192533376.

The previous prime is 398819363. The next prime is 398819381. The reversal of 398819368 is 863918893.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 353364804 + 45454564 = 18798^2 + 6742^2 .

It is not an unprimeable number, because it can be changed into a prime (398819363) 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 3 ways as a sum of consecutive naturals, for example, 859293 + ... + 859756.

Almost surely, 2^398819368 is an apocalyptic number.

It is an amenable number.

398819368 is a deficient number, since it is larger than the sum of its proper divisors (374753132).

398819368 is a wasteful number, since it uses less digits than its factorization.

398819368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1719084 (or 1719080 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 55.

The square root of 398819368 is about 19970.4623882373. The cubic root of 398819368 is about 736.0806710961.

The spelling of 398819368 in words is "three hundred ninety-eight million, eight hundred nineteen thousand, three hundred sixty-eight".