389404 has 12 divisors (see below), whose sum is σ = 692104. Its totient is φ = 191664.

The previous prime is 389401. The next prime is 389437. The reversal of 389404 is 404983.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a pancake number, because a pancake can be divided into 389404 parts by 882 straight cuts.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 459 + ... + 994.

2³⁸⁹⁴⁰⁴ is an apocalyptic number.

It is an amenable number.

389404 is a deficient number, since it is larger than the sum of its proper divisors (302700).

389404 is a wasteful number, since it uses less digits than its factorization.

389404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1524 (or 1522 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 389404 is about 624.0224354941. The cubic root of 389404 is about 73.0241991455.

Subtracting from 389404 its sum of digits (28), we obtain a square (389376 = 624²).

The spelling of 389404 in words is "three hundred eighty-nine thousand, four hundred four".