389412 has 36 divisors (see below), whose sum is σ = 1021020. Its totient is φ = 124992.

The previous prime is 389401. The next prime is 389437. The reversal of 389412 is 214983.

It can be written as a sum of positive squares in 2 ways, for example, as 207936 + 181476 = 456^2 + 426^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an alternating number because its digits alternate between odd and even.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 389412.

It is an unprimeable number.

389412 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 858 + ... + 1230.

2³⁸⁹⁴¹² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 389412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (510510).

389412 is an abundant number, since it is smaller than the sum of its proper divisors (631608).

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

389412 is a wasteful number, since it uses less digits than its factorization.

389412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412 (or 407 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 389412 is about 624.0288454871. The cubic root of 389412 is about 73.0246992171.

The spelling of 389412 in words is "three hundred eighty-nine thousand, four hundred twelve".