398034 has 64 divisors (see below), whose sum is σ = 1102080. Its totient is φ = 104976.

The previous prime is 398033. The next prime is 398039. The reversal of 398034 is 430893.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 9.

It is a zygodrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 397989 and 398007.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 398034.

It is not an unprimeable number, because it can be changed into a prime (398033) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30612 + ... + 30624.

It is an arithmetic number, because the mean of its divisors is an integer number (17220).

2³⁹⁸⁰³⁴ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 398034, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (551040).

398034 is an abundant number, since it is smaller than the sum of its proper divisors (704046).

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

398034 is an equidigital number, since it uses as much as digits as its factorization.

398034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43 (or 25 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 398034 is about 630.8993580596. The cubic root of 398034 is about 73.5597182301.

The spelling of 398034 in words is "three hundred ninety-eight thousand, thirty-four".