12091038 has 16 divisors (see below), whose sum is σ = 24368256. Its totient is φ = 3999320.

The previous prime is 12091033. The next prime is 12091061. The reversal of 12091038 is 83019021.

It is a junction number, because it is equal to n+sod(n) for n = 12090999 and 12091017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12091033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6906 + ... + 8477.

It is an arithmetic number, because the mean of its divisors is an integer number (1523016).

Almost surely, 2^12091038 is an apocalyptic number.

12091038 is an abundant number, since it is smaller than the sum of its proper divisors (12277218).

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

12091038 is a wasteful number, since it uses less digits than its factorization.

12091038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15519.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 12091038 is about 3477.2169906406. The cubic root of 12091038 is about 229.5203488680.

The spelling of 12091038 in words is "twelve million, ninety-one thousand, thirty-eight".