12403322 has 8 divisors (see below), whose sum is σ = 18719616. Its totient is φ = 6163452.

The previous prime is 12403309. The next prime is 12403351. The reversal of 12403322 is 22330421.

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

It is a super-4 number, since 4×12403322⁴ (a number of 29 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12403322.

It is an unprimeable number.

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, 18698 + ... + 19349.

It is an arithmetic number, because the mean of its divisors is an integer number (2339952).

Almost surely, 2^12403322 is an apocalyptic number.

12403322 is the 1883-rd centered heptagonal number.

12403322 is a deficient number, since it is larger than the sum of its proper divisors (6316294).

12403322 is a wasteful number, since it uses less digits than its factorization.

12403322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38212.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 12403322 is about 3521.8350330474. The cubic root of 12403322 is about 231.4795731362.

Adding to 12403322 its reverse (22330421), we get a palindrome (34733743).

The spelling of 12403322 in words is "twelve million, four hundred three thousand, three hundred twenty-two".