12443330 has 8 divisors (see below), whose sum is σ = 22398012. Its totient is φ = 4977328.

The previous prime is 12443323. The next prime is 12443339. The reversal of 12443330 is 3334421.

It can be written as a sum of positive squares in 2 ways, for example, as 12103441 + 339889 = 3479^2 + 583^2 .

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

It is a super-2 number, since 2×12443330² = 309672922977800, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12443339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 622157 + ... + 622176.

Almost surely, 2^12443330 is an apocalyptic number.

12443330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12443330 is a deficient number, since it is larger than the sum of its proper divisors (9954682).

12443330 is a wasteful number, since it uses less digits than its factorization.

12443330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1244340.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 12443330 is about 3527.5104535635. The cubic root of 12443330 is about 231.7281918837.

Adding to 12443330 its reverse (3334421), we get a palindrome (15777751).

The spelling of 12443330 in words is "twelve million, four hundred forty-three thousand, three hundred thirty".