398364 has 24 divisors (see below), whose sum is σ = 942480. Its totient is φ = 130944.

The previous prime is 398357. The next prime is 398369. The reversal of 398364 is 463893.

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 398364.

It is not an unprimeable number, because it can be changed into a prime (398369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 882 + ... + 1254.

It is an arithmetic number, because the mean of its divisors is an integer number (39270).

2³⁹⁸³⁶⁴ is an apocalyptic number.

It is an amenable number.

398364 is an abundant number, since it is smaller than the sum of its proper divisors (544116).

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

398364 is a wasteful number, since it uses less digits than its factorization.

398364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469 (or 467 counting only the distinct ones).

The product of its digits is 15552, while the sum is 33.

The square root of 398364 is about 631.1608352869. The cubic root of 398364 is about 73.5800414534.

The spelling of 398364 in words is "three hundred ninety-eight thousand, three hundred sixty-four".