2389812 has 12 divisors (see below), whose sum is σ = 5576256. Its totient is φ = 796600.

The previous prime is 2389799. The next prime is 2389813. The reversal of 2389812 is 2189832.

2389812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×2389812² = 11422402790688, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2389813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99564 + ... + 99587.

It is an arithmetic number, because the mean of its divisors is an integer number (464688).

2^2389812 is an apocalyptic number.

It is an amenable number.

2389812 is an abundant number, since it is smaller than the sum of its proper divisors (3186444).

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

2389812 is a wasteful number, since it uses less digits than its factorization.

2389812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199158 (or 199156 counting only the distinct ones).

The product of its digits is 6912, while the sum is 33.

The square root of 2389812 is about 1545.9016786329. The cubic root of 2389812 is about 133.6968717865.

The spelling of 2389812 in words is "two million, three hundred eighty-nine thousand, eight hundred twelve".