12989382 has 16 divisors (see below), whose sum is σ = 29690112. Its totient is φ = 3711240.

The previous prime is 12989351. The next prime is 12989387. The reversal of 12989382 is 28398921.

12989382 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 309271 = 12989382 / (1 + 2 + 9 + 8 + 9 + 3 + 8 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12989387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154594 + ... + 154677.

It is an arithmetic number, because the mean of its divisors is an integer number (1855632).

Almost surely, 2^12989382 is an apocalyptic number.

12989382 is an abundant number, since it is smaller than the sum of its proper divisors (16700730).

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

12989382 is a wasteful number, since it uses less digits than its factorization.

12989382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309283.

The product of its digits is 62208, while the sum is 42.

The square root of 12989382 is about 3604.0785230070. The cubic root of 12989382 is about 235.0694347411.

The spelling of 12989382 in words is "twelve million, nine hundred eighty-nine thousand, three hundred eighty-two".