12324402 has 24 divisors (see below), whose sum is σ = 27325584. Its totient is φ = 4012344.

The previous prime is 12324353. The next prime is 12324409. The reversal of 12324402 is 20442321.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (12324409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7188 + ... + 8735.

It is an arithmetic number, because the mean of its divisors is an integer number (1138566).

Almost surely, 2^12324402 is an apocalyptic number.

12324402 is an abundant number, since it is smaller than the sum of its proper divisors (15001182).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12324402 is a wasteful number, since it uses less digits than its factorization.

12324402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15974 (or 15971 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 12324402 is about 3510.6127670252. The cubic root of 12324402 is about 230.9875745270.

Adding to 12324402 its reverse (20442321), we get a palindrome (32766723).

The spelling of 12324402 in words is "twelve million, three hundred twenty-four thousand, four hundred two".