398585328 has 20 divisors (see below), whose sum is σ = 1029678888. Its totient is φ = 132861760.

The previous prime is 398585303. The next prime is 398585351. The reversal of 398585328 is 823585893.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 4151883 + ... + 4151978.

Almost surely, 2^398585328 is an apocalyptic number.

It is an amenable number.

398585328 is an abundant number, since it is smaller than the sum of its proper divisors (631093560).

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

398585328 is a wasteful number, since it uses less digits than its factorization.

398585328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8303872 (or 8303866 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 51.

The square root of 398585328 is about 19964.6018743175. The cubic root of 398585328 is about 735.9366576710.

The spelling of 398585328 in words is "three hundred ninety-eight million, five hundred eighty-five thousand, three hundred twenty-eight".