12406044 has 48 divisors (see below), whose sum is σ = 33401088. Its totient is φ = 3510528.

The previous prime is 12406027. The next prime is 12406049. The reversal of 12406044 is 44060421.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 12406044.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12406049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8839 + ... + 10145.

It is an arithmetic number, because the mean of its divisors is an integer number (695856).

Almost surely, 2^12406044 is an apocalyptic number.

12406044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12406044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16700544).

12406044 is an abundant number, since it is smaller than the sum of its proper divisors (20995044).

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

12406044 is a wasteful number, since it uses less digits than its factorization.

12406044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1434 (or 1432 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 12406044 is about 3522.2214581142. The cubic root of 12406044 is about 231.4965051944.

Adding to 12406044 its reverse (44060421), we get a palindrome (56466465).

The spelling of 12406044 in words is "twelve million, four hundred six thousand, forty-four".