12389814 has 24 divisors (see below), whose sum is σ = 27590520. Its totient is φ = 4121316.

The previous prime is 12389803. The next prime is 12389833. The reversal of 12389814 is 41898321.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25627 + ... + 26105.

It is an arithmetic number, because the mean of its divisors is an integer number (1149605).

Almost surely, 2^12389814 is an apocalyptic number.

12389814 is an abundant number, since it is smaller than the sum of its proper divisors (15200706).

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

12389814 is an frugal number, since it uses more digits than its factorization.

12389814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969 (or 484 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 12389814 is about 3519.9167603794. The cubic root of 12389814 is about 231.3955106604.

Multiplying 12389814 by its product of digits (13824), we get a square (171276788736 = 413856²).

It can be divided in two parts, 12389 and 814, that added together give a triangular number (13203 = T₁₆₂).

The spelling of 12389814 in words is "twelve million, three hundred eighty-nine thousand, eight hundred fourteen".