12042349 has 4 divisors (see below), whose sum is σ = 13137120. Its totient is φ = 10947580.

The previous prime is 12042347. The next prime is 12042383. The reversal of 12042349 is 94324021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94324021 = 11 ⋅8574911.

It is a cyclic number.

It is not a de Polignac number, because 12042349 - 2¹ = 12042347 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12042343) 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 3 ways as a sum of consecutive naturals, for example, 547369 + ... + 547390.

It is an arithmetic number, because the mean of its divisors is an integer number (3284280).

Almost surely, 2^12042349 is an apocalyptic number.

It is an amenable number.

12042349 is a deficient number, since it is larger than the sum of its proper divisors (1094771).

12042349 is a wasteful number, since it uses less digits than its factorization.

12042349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094770.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 12042349 is about 3470.2087833443. The cubic root of 12042349 is about 229.2118517771.

It can be divided in two parts, 1204 and 2349, that added together give a palindrome (3553).

The spelling of 12042349 in words is "twelve million, forty-two thousand, three hundred forty-nine".