398124 has 18 divisors (see below), whose sum is σ = 1006460. Its totient is φ = 132696.

The previous prime is 398119. The next prime is 398129. The reversal of 398124 is 421893.

It is an interprime number because it is at equal distance from previous prime (398119) and next prime (398129).

It is a tau number, because it is divible by the number of its divisors (18).

It is a nialpdrome in base 9.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 398124.

It is not an unprimeable number, because it can be changed into a prime (398129) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5494 + ... + 5565.

2³⁹⁸¹²⁴ is an apocalyptic number.

It is an amenable number.

398124 is an abundant number, since it is smaller than the sum of its proper divisors (608336).

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

398124 is a wasteful number, since it uses less digits than its factorization.

398124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11069 (or 11064 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 398124 is about 630.9706807768. The cubic root of 398124 is about 73.5652620410.

It can be divided in two parts, 3981 and 24, that added together give a triangular number (4005 = T₈₉).

The spelling of 398124 in words is "three hundred ninety-eight thousand, one hundred twenty-four".