398559000 has 128 divisors (see below), whose sum is σ = 1421222400. Its totient is φ = 91094400.

The previous prime is 398558989. The next prime is 398559001. The reversal of 398559000 is 955893.

It is a self number, because there is not a number n which added to its sum of digits gives 398559000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398559001) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 11511 + ... + 30489.

It is an arithmetic number, because the mean of its divisors is an integer number (11103300).

Almost surely, 2^398559000 is an apocalyptic number.

398559000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 398559000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (710611200).

398559000 is an abundant number, since it is smaller than the sum of its proper divisors (1022663400).

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

398559000 is a wasteful number, since it uses less digits than its factorization.

398559000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19010 (or 18996 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 39.

The square root of 398559000 is about 19963.9424964109. The cubic root of 398559000 is about 735.9204535564.

The spelling of 398559000 in words is "three hundred ninety-eight million, five hundred fifty-nine thousand".