398676500 has 24 divisors (see below), whose sum is σ = 870710568. Its totient is φ = 159470400.

The previous prime is 398676491. The next prime is 398676557. The reversal of 398676500 is 5676893.

It can be written as a sum of positive squares in 4 ways, for example, as 35344 + 398641156 = 188^2 + 19966^2 .

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 398177 + ... + 399176.

It is an arithmetic number, because the mean of its divisors is an integer number (36279607).

Almost surely, 2^398676500 is an apocalyptic number.

It is an amenable number.

398676500 is an abundant number, since it is smaller than the sum of its proper divisors (472034068).

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

398676500 is a wasteful number, since it uses less digits than its factorization.

398676500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797372 (or 797360 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 398676500 is about 19966.8850850602. The cubic root of 398676500 is about 735.9927658591.

The spelling of 398676500 in words is "three hundred ninety-eight million, six hundred seventy-six thousand, five hundred".