398960828 has 24 divisors (see below), whose sum is σ = 844859232. Its totient is φ = 160925184.

The previous prime is 398960827. The next prime is 398960833. The reversal of 398960828 is 828069893.

It is a self number, because there is not a number n which added to its sum of digits gives 398960828.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398960827) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 418601 + ... + 419552.

It is an arithmetic number, because the mean of its divisors is an integer number (35202468).

Almost surely, 2^398960828 is an apocalyptic number.

It is an amenable number.

398960828 is an abundant number, since it is smaller than the sum of its proper divisors (445898404).

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

398960828 is a wasteful number, since it uses less digits than its factorization.

398960828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838181 (or 838179 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 53.

The square root of 398960828 is about 19974.0038049461. The cubic root of 398960828 is about 736.1676893233.

The spelling of 398960828 in words is "three hundred ninety-eight million, nine hundred sixty thousand, eight hundred twenty-eight".