12040403 has 8 divisors (see below), whose sum is σ = 12801888. Its totient is φ = 11284864.

The previous prime is 12040373. The next prime is 12040417. The reversal of 12040403 is 30404021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12040403 - 2¹² = 12036307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12040463) 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, 3125 + ... + 5817.

It is an arithmetic number, because the mean of its divisors is an integer number (1600236).

Almost surely, 2^12040403 is an apocalyptic number.

12040403 is a deficient number, since it is larger than the sum of its proper divisors (761485).

12040403 is a wasteful number, since it uses less digits than its factorization.

12040403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2973.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 12040403 is about 3469.9283854281. The cubic root of 12040403 is about 229.1995045102.

Adding to 12040403 its reverse (30404021), we get a palindrome (42444424).

The spelling of 12040403 in words is "twelve million, forty thousand, four hundred three".