398392 has 16 divisors (see below), whose sum is σ = 786600. Its totient is φ = 188640.

The previous prime is 398369. The next prime is 398393. The reversal of 398392 is 293893.

398392 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398393) 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 3 ways as a sum of consecutive naturals, for example, 1159 + ... + 1462.

2³⁹⁸³⁹² is an apocalyptic number.

It is an amenable number.

398392 is a deficient number, since it is larger than the sum of its proper divisors (388208).

398392 is a wasteful number, since it uses less digits than its factorization.

398392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2646 (or 2642 counting only the distinct ones).

The product of its digits is 11664, while the sum is 34.

The square root of 398392 is about 631.1830162481. The cubic root of 398392 is about 73.5817653314.

The spelling of 398392 in words is "three hundred ninety-eight thousand, three hundred ninety-two".