12040743 has 48 divisors (see below), whose sum is σ = 20238336. Its totient is φ = 6289920.

The previous prime is 12040739. The next prime is 12040747. The reversal of 12040743 is 34704021.

It is an interprime number because it is at equal distance from previous prime (12040739) and next prime (12040747).

It is not a de Polignac number, because 12040743 - 2² = 12040739 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12040747) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 94746 + ... + 94872.

It is an arithmetic number, because the mean of its divisors is an integer number (421632).

Almost surely, 2^12040743 is an apocalyptic number.

12040743 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12040743 is a deficient number, since it is larger than the sum of its proper divisors (8197593).

12040743 is a wasteful number, since it uses less digits than its factorization.

12040743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184 (or 171 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 12040743 is about 3469.9773774479. The cubic root of 12040743 is about 229.2016618881.

Adding to 12040743 its reverse (34704021), we get a palindrome (46744764).

Subtracting 12040743 from its reverse (34704021), we obtain a triangular number (22663278 = T₆₇₃₂).

The spelling of 12040743 in words is "twelve million, forty thousand, seven hundred forty-three".