398466 has 32 divisors (see below), whose sum is σ = 910080. Its totient is φ = 129168.

The previous prime is 398459. The next prime is 398467. The reversal of 398466 is 664893.

It is a Curzon number.

It is a nialpdrome in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 398466.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2460 + ... + 2616.

It is an arithmetic number, because the mean of its divisors is an integer number (28440).

2³⁹⁸⁴⁶⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 398466, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (455040).

398466 is an abundant number, since it is smaller than the sum of its proper divisors (511614).

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

398466 is a wasteful number, since it uses less digits than its factorization.

398466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215 (or 209 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 398466 is about 631.2416336079. The cubic root of 398466 is about 73.5863209061.

The spelling of 398466 in words is "three hundred ninety-eight thousand, four hundred sixty-six".