398130 has 32 divisors (see below), whose sum is σ = 998784. Its totient is φ = 101376.

The previous prime is 398129. The next prime is 398143. The reversal of 398130 is 31893.

It is a self number, because there is not a number n which added to its sum of digits gives 398130.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 402 + ... + 978.

It is an arithmetic number, because the mean of its divisors is an integer number (31212).

2³⁹⁸¹³⁰ is an apocalyptic number.

398130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 398130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (499392).

398130 is an abundant number, since it is smaller than the sum of its proper divisors (600654).

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

398130 is a wasteful number, since it uses less digits than its factorization.

398130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 398130 is about 630.9754353380. The cubic root of 398130 is about 73.5656315987.

It can be divided in two parts, 398 and 130, that added together give a triangular number (528 = T₃₂).

The spelling of 398130 in words is "three hundred ninety-eight thousand, one hundred thirty".