12390612 has 24 divisors (see below), whose sum is σ = 31135776. Its totient is φ = 3812448.

The previous prime is 12390611. The next prime is 12390613. The reversal of 12390612 is 21609321.

It is an interprime number because it is at equal distance from previous prime (12390611) and next prime (12390613).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12390611) 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 7 ways as a sum of consecutive naturals, for example, 39558 + ... + 39869.

It is an arithmetic number, because the mean of its divisors is an integer number (1297324).

Almost surely, 2^12390612 is an apocalyptic number.

12390612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12390612 is an abundant number, since it is smaller than the sum of its proper divisors (18745164).

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

12390612 is a wasteful number, since it uses less digits than its factorization.

12390612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79447 (or 79445 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 12390612 is about 3520.0301135076. The cubic root of 12390612 is about 231.4004784416.

Adding to 12390612 its reverse (21609321), we get a palindrome (33999933).

The spelling of 12390612 in words is "twelve million, three hundred ninety thousand, six hundred twelve".