398930 has 32 divisors (see below), whose sum is σ = 846720. Its totient is φ = 132480.

The previous prime is 398921. The next prime is 398933. The reversal of 398930 is 39893.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a nialpdrome in base 14.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 398930.

It is not an unprimeable number, because it can be changed into a prime (398933) by changing a digit.

398930 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2801 + ... + 2939.

It is an arithmetic number, because the mean of its divisors is an integer number (26460).

2³⁹⁸⁹³⁰ is an apocalyptic number.

398930 is an abundant number, since it is smaller than the sum of its proper divisors (447790).

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

398930 is a wasteful number, since it uses less digits than its factorization.

398930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 398930 is about 631.6090562999. The cubic root of 398930 is about 73.6148727427.

The spelling of 398930 in words is "three hundred ninety-eight thousand, nine hundred thirty".