398334 has 16 divisors (see below), whose sum is σ = 803088. Its totient is φ = 131712.

The previous prime is 398323. The next prime is 398339. The reversal of 398334 is 433893.

It is a happy number.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1014 + ... + 1350.

It is an arithmetic number, because the mean of its divisors is an integer number (50193).

2³⁹⁸³³⁴ is an apocalyptic number.

398334 is an abundant number, since it is smaller than the sum of its proper divisors (404754).

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

398334 is a wasteful number, since it uses less digits than its factorization.

398334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539.

The product of its digits is 7776, while the sum is 30.

The square root of 398334 is about 631.1370691062. The cubic root of 398334 is about 73.5781943515.

The spelling of 398334 in words is "three hundred ninety-eight thousand, three hundred thirty-four".