398488676 has 12 divisors (see below), whose sum is σ = 714364140. Its totient is φ = 194384640.

The previous prime is 398488667. The next prime is 398488703. The reversal of 398488676 is 676884893.

It can be written as a sum of positive squares in 2 ways, for example, as 86118400 + 312370276 = 9280^2 + 17674^2 .

It is a super-3 number, since 3×398488676³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1214741 + ... + 1215068.

It is an arithmetic number, because the mean of its divisors is an integer number (59530345).

Almost surely, 2^398488676 is an apocalyptic number.

It is an amenable number.

398488676 is a deficient number, since it is larger than the sum of its proper divisors (315875464).

398488676 is a wasteful number, since it uses less digits than its factorization.

398488676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2429854 (or 2429852 counting only the distinct ones).

The product of its digits is 13934592, while the sum is 59.

The square root of 398488676 is about 19962.1811433520. The cubic root of 398488676 is about 735.8771676906.

The spelling of 398488676 in words is "three hundred ninety-eight million, four hundred eighty-eight thousand, six hundred seventy-six".