12390836 has 12 divisors (see below), whose sum is σ = 22626912. Its totient is φ = 5926008.

The previous prime is 12390823. The next prime is 12390839. The reversal of 12390836 is 63809321.

12390836 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12390839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67250 + ... + 67433.

It is an arithmetic number, because the mean of its divisors is an integer number (1885576).

Almost surely, 2^12390836 is an apocalyptic number.

It is an amenable number.

12390836 is a deficient number, since it is larger than the sum of its proper divisors (10236076).

12390836 is a wasteful number, since it uses less digits than its factorization.

12390836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134710 (or 134708 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 12390836 is about 3520.0619312734. The cubic root of 12390836 is about 231.4018728681.

The spelling of 12390836 in words is "twelve million, three hundred ninety thousand, eight hundred thirty-six".