398384 has 20 divisors (see below), whose sum is σ = 882384. Its totient is φ = 170688.

The previous prime is 398369. The next prime is 398393. The reversal of 398384 is 483893.

It is a super-2 number, since 2×398384² = 317419622912, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 398384.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1667 + ... + 1890.

2³⁹⁸³⁸⁴ is an apocalyptic number.

It is an amenable number.

398384 is an abundant number, since it is smaller than the sum of its proper divisors (484000).

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

398384 is a wasteful number, since it uses less digits than its factorization.

398384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3572 (or 3566 counting only the distinct ones).

The product of its digits is 20736, while the sum is 35.

The square root of 398384 is about 631.1766789101. The cubic root of 398384 is about 73.5812728031.

The spelling of 398384 in words is "three hundred ninety-eight thousand, three hundred eighty-four".