12041406 has 64 divisors (see below), whose sum is σ = 30542400. Its totient is φ = 3483648.

The previous prime is 12041401. The next prime is 12041411. The reversal of 12041406 is 60414021.

It is an interprime number because it is at equal distance from previous prime (12041401) and next prime (12041411).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12041401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11430 + ... + 12438.

It is an arithmetic number, because the mean of its divisors is an integer number (477225).

Almost surely, 2^12041406 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12041406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15271200).

12041406 is an abundant number, since it is smaller than the sum of its proper divisors (18500994).

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

12041406 is a wasteful number, since it uses less digits than its factorization.

12041406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050 (or 1044 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 12041406 is about 3470.0729098969. The cubic root of 12041406 is about 229.2058686582.

Adding to 12041406 its reverse (60414021), we get a palindrome (72455427).

The spelling of 12041406 in words is "twelve million, forty-one thousand, four hundred six".